Chemistry

3. A nuclear reaction when a large nucleus splits into two smaller nuclei.
5. A type of reaction that can convert an atom into an atom of another element.
6. A word used to describe when a substance is able to be stretched into wires.
8. A special type of reaction when a substance reacts with oxygen gas.
11. A base that will dissolve in water.
15. A type of reaction that releases heat.
18. A substance that turns litmus paper blue.
21. The name given to the reaction used by plants to produce sugar.
22. A word used to describe when a substance is able to be hammered into new shapes.
24. Subatomic particle with a negative charge.
25. The name given the substances you are left with after a chemical reaction.
26. The chemical symbol NA is for which atom?

1. The name given to the cluster of protons and neutrons at the centre of an atom.
2. The name given to a cluster of atoms.
4. A type of reaction that absorbs heat from the surroundings.
7. A mixture of a base metal and small amounts of other elements.
9. An atom that becomes electrically charged from losing or gaining electrons.
10. There are 118 known types of atoms, and only 98 are found ________ on Earth.
12. A substance that turns litmus paper red.
13. The name given to substances you start with in a chemical reaction.
14. A substance that is made up of different types of atoms.
16. A chemical that changes colour to show if a substance is acidic, neutral, or basic.
17. The name given to an atom that has the same number of protons but a different number of neutrons.
19. A substance that is made up of one type of atom.
20. Subatomic particle that is found in the cloud that surrounds the nucleus.
23. the product formed when iron reacts with water.
25. Subatomic particle with a positive charge.