Posted in Awards, Do You Know, Science, ScienceX

Chemistry : Atoms

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#Atoms

1. What is the first element on the periodic table – Hydrogen

2. What is the centre of an atom called – A nucleus

3. What is the main gas found in the air we breathe – Nitrogen (around 78%)

4. Famous New Zealand scientist Ernest Rutherford was awarded a Nobel Prize in which field – Chemistry

5. What is the chemical symbol for gold – Au

6. K is the chemical symbol for which element – Potassium

7. What orbits the nucleus of an atom – Electrons

8. At room temperature, what is the only metal that is in liquid form – Mercury

9. A nuclear reaction where the nucleus of an atom splits into smaller parts is known as nuclear fission or nuclear fusion – Nuclear fission

10. What is H2O more commonly known as – Water

11. What is the third most common gas found in the air we breathe – Argon (around 1%)

12. What is the name given to substances that are initially involved in a chemical reaction – Reactants

13. Is sodium hydroxide (NaOH) an acid or base – Base

14. Atoms of the same chemical element that have different atomic mass are known as – Isotopes

15. What is the fourth most abundant element in the universe in terms of mass – Carbon

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