What is chemistry, why would you study it, and where is the best place to study, intern or work abroad?

What is chemistry?

• Chemistry is the scientific discipline that examines matter, including the composition, structure, properties, and transformations of substances.
• It studies how atoms, ions, and molecules interact and how these microscopic interactions determine the behaviour of materials observed at larger scales.
• The field provides a way of understanding natural and manufactured substances through patterns of bonding, reactions, energy, composition, and molecular structure.

What are the main reasons for being active in the field of chemistry?

• Chemistry provides a detailed framework for understanding why substances behave differently and how molecular structure influences physical and chemical properties.
• The discipline contributes to environmental understanding by examining pollutants, atmospheric reactions, water chemistry, soil composition, and natural chemical cycles.
• Laboratory chemistry connects theoretical knowledge with practical experimentation through synthesis, measurement, observation, purification, and identification of substances.
• Chemistry contributes to understanding medicines, food, biological molecules, materials, consumer products, and many other substances encountered throughout society.
• The field has an international character because chemical research, laboratory methods, pharmaceuticals, materials, environmental monitoring, and scientific collaboration extend across national borders.

What skills do you need to participate in chemistry?

• To analyse: chemistry frequently involves interpreting experimental results, spectra, reaction patterns, molecular structures, concentrations, and changes in chemical systems.
• To plan: laboratory experiments require careful preparation of procedures, substances, measurements, controls, equipment, and sequential experimental steps.
• To be aware of your surroundings: chemical laboratories require attention to substances, equipment, labels, reaction conditions, contamination risks, and laboratory safety procedures.
• To collaborate: chemistry often intersects with biology, medicine, physics, environmental science, materials research, and other scientific disciplines.
• To communicate: chemists need to describe methods, observations, measurements, uncertainties, and conclusions accurately so that scientific findings can be understood and evaluated.

What motivates people to study or work in chemistry?

• Be and feel meaningful with a sense of purpose: chemistry can attract people interested in understanding substances that influence health, environments, materials, food, and daily life.
• Be and feel experienced: laboratory work combines theoretical ideas with direct observation, measurement, experimentation, synthesis, and analytical techniques.
• Be and feel self-aware: careful chemical research requires reflection on assumptions, measurement uncertainty, experimental limitations, interpretation, and responsible handling of substances.
• Be and feel involved: chemistry connects fundamental scientific questions with practical subjects such as medicines, materials, environmental monitoring, food composition, and laboratory testing.
• Be and feel connected: chemical research frequently develops through shared methods, laboratory teamwork, interdisciplinary projects, and international scientific cooperation.

What are the best countries and locations to study, intern or work in chemistry?

• Countries with established traditions in fundamental chemistry, laboratory research, pharmaceuticals, and molecular science: Germany, Switzerland, United Kingdom, France.
• Countries with substantial activity in chemical research, analytical science, pharmaceuticals, materials, and biotechnology: United States, Canada, Ireland.
• Countries where chemistry is closely connected with advanced materials, electronics, molecular technologies, and laboratory research: Japan, South Korea, Singapore, Taiwan.
• Countries where environmental chemistry, water science, atmospheric research, sustainability, and analytical monitoring have strong scientific relevance: The Netherlands, Denmark, Sweden, Finland.
• Countries where chemistry intersects with biodiversity, natural products, minerals, agriculture, environmental monitoring, and resource-related research: Australia, South Africa, Brazil, Chile.

Where can you find work experience and vacancies for jobs, internships, and voluntary work in chemistry abroad?

• Research organizations and scientific work abroad: suitable for laboratory assistance, chemical analysis, experimental research, sample preparation, scientific measurements, and research project support.
• Health organizations and medical work abroad: relevant to clinical laboratories, pharmaceutical research, biochemical analysis, diagnostic testing, and laboratory activities connected with health sciences.
• Environmental organizations and sustainability abroad: suitable for water analysis, pollution monitoring, soil chemistry, environmental sampling, waste studies, and chemical assessment of ecosystems.
• Technical organizations and working in IT: suitable where chemistry intersects with laboratory instrumentation, analytical technology, scientific software, materials characterization, and technical measurement systems.
• Companies and business services abroad: relevant to laboratory testing, quality control, product development, formulation, materials testing, and scientific support within commercial organizations.

What are things to consider when studying or working abroad in chemistry?

• International chemistry experiences can include laboratory placements, academic study, research projects, field sampling, scientific internships, and related activities: activities around and abroad
• Preparation can include laboratory requirements, documentation, accommodation, local regulations, chemical safety procedures, transportation, and practical arrangements for the period abroad: preparation for successful travel and stay abroad
• Health insurance, personal safety, laboratory coverage, healthcare arrangements, and protection appropriate to the planned activities deserve attention before departure: insuring and taking care abroad

Further depth: what is chemistry as a discipline?

What are the main features of chemistry?

Chemistry investigates matter through experiments and theoretical models, connecting observable properties with the structures, interactions, energies, and transformations of atoms, ions, molecules, and larger chemical systems.

• Study of matter: Chemistry examines the composition, structure, properties, and transformations of substances, ranging from individual molecules to complex mixtures and functional materials.
• Molecular perspective: Observable behaviour is interpreted through atoms, electrons, bonds, molecular geometry, intermolecular forces, and the interactions occurring between particles at microscopic scales.
• Experimental approach: Laboratory experiments allow chemical hypotheses to be tested through controlled reactions, measurement, synthesis, purification, observation, and identification of substances.
• Quantitative analysis: Measurements of mass, concentration, volume, temperature, energy, and reaction ratios provide numerical descriptions of chemical systems and support comparison between experiments and theoretical predictions.
• Scientific connections: Chemistry links physical principles with questions from biology, medicine, environmental science, geology, materials science, agriculture, and other disciplines concerned with matter.

What are important sub-areas of chemistry?

Chemistry contains several major branches that approach matter from different perspectives, including carbon compounds, elements and minerals, physical principles, analytical measurement, biological molecules, and environmental systems.

• Organic chemistry: This area studies carbon-containing compounds, including their molecular structures, properties, reactions, synthesis pathways, and relationships between chemical structure and reactivity.
• Inorganic chemistry: This field examines elements, metals, minerals, coordination compounds, catalysts, and other substances outside the traditional focus of carbon-based organic chemistry.
• Physical chemistry: Mathematical and physical principles are used to investigate energy, molecular behaviour, equilibrium, spectroscopy, reaction rates, surfaces, and interactions within chemical systems.
• Biochemistry: The chemistry of living systems is studied through molecules such as proteins, carbohydrates, lipids, nucleic acids, metabolites, and the reactions connecting them.
• Environmental chemistry: Chemical substances and reactions in air, water, soil, and ecosystems are examined, including pollutants, environmental transformations, and naturally occurring chemical cycles.

What are key concepts in chemistry?

Several concepts provide the foundation for explaining how substances are structured, why they possess particular properties, and how they transform when chemical conditions or interactions change.

• Atomic structure: Protons, neutrons, electrons, and electronic configurations determine the identity of elements and contribute to recurring patterns in their chemical properties and reactivity.
• Chemical bonding: Ionic, covalent, metallic, and intermolecular interactions influence molecular structure, stability, solubility, melting behaviour, reactivity, and many other properties of substances.
• Chemical reactions: Reactions rearrange atoms and chemical bonds to form new substances while following principles such as conservation of matter and predictable quantitative relationships.
• Stoichiometry: Relationships between amounts of reactants and products allow chemical quantities to be calculated from balanced equations, concentrations, masses, volumes, and molecular proportions.
• Chemical equilibrium: Reversible reactions can reach dynamic states where forward and reverse processes continue simultaneously while the overall concentrations of participating substances remain stable.

Who are influential figures in chemistry?

The development of chemistry was shaped by scientists who established quantitative experimentation, atomic theory, periodic classification, radioactivity research, and modern explanations of chemical bonding and molecular structure.

• Antoine Lavoisier: His quantitative experiments contributed to the conservation of mass and helped establish systematic measurement and modern approaches to describing chemical reactions.
• John Dalton: His atomic theory provided an influential framework for explaining substances and chemical combinations in terms of atoms with characteristic properties and proportions.
• Dmitri Mendeleev: His periodic classification organized known elements according to recurring properties and provided a framework that successfully anticipated characteristics of previously unknown elements.
• Marie Curie: Her investigations of radioactivity and the elements polonium and radium expanded scientific understanding of atomic phenomena and radioactive substances.
• Linus Pauling: His research on chemical bonding and molecular structure helped connect electronic configurations with molecular geometry, bonding behaviour, and the properties of chemical substances.

Why is chemistry important?

Chemistry provides explanations and analytical methods for understanding substances across natural and human-made environments, connecting molecular behaviour with medicine, materials, environmental systems, food, and scientific measurement.

• Material understanding: Chemical principles explain how molecular composition, bonding, and structure influence properties such as solubility, stability, colour, conductivity, reactivity, and mechanical behaviour.
• Biological understanding: Biochemistry and molecular chemistry contribute to explaining metabolism, proteins, genetic molecules, cellular reactions, pharmaceuticals, and interactions between chemical substances and living organisms.
• Environmental analysis: Chemical methods identify pollutants and examine transformations involving atmospheric compounds, water constituents, nutrients, metals, contaminants, and other substances moving through environmental systems.
• Materials research: Understanding molecules and chemical interactions supports research into polymers, catalysts, coatings, electronic materials, pharmaceuticals, composites, and other substances with deliberately selected properties.

How is chemistry applied in practice?

Chemical knowledge is applied wherever substances need to be identified, synthesized, measured, purified, characterized, or understood, from scientific laboratories to medicine, environmental monitoring, food, and materials research.

• Laboratory analysis: Chemical and instrumental methods identify compounds, determine concentrations, assess purity, investigate unknown samples, and measure changes occurring during experiments or chemical reactions.
• Drug discovery: Organic and medicinal chemistry contribute to designing, synthesizing, characterizing, and studying molecules that can interact with biological structures and biochemical processes.
• Environmental monitoring: Chemical techniques measure contaminants, nutrients, gases, metals, organic compounds, and other substances in water, air, soil, sediments, and biological samples.
• Forensic analysis: Chemical measurements can identify drugs, toxins, residues, fibres, paints, unknown powders, and other materials examined during forensic investigations.
• Materials research: Chemists study molecular structures and interactions to investigate substances with particular optical, electrical, thermal, mechanical, catalytic, or chemical characteristics.
• Food chemistry: Chemical analysis examines composition, flavour molecules, nutrients, contaminants, additives, preservation reactions, quality, and transformations occurring during the preparation and storage of food.