Ashely’s Crossword

4. the third-most abundant gas in the Earth's atmosphere .
6. A positive charge
7. atom or group of atoms that bears a positive electric charge.
9. a stable subatomic particle with a charge of negative electricity
13. A column in the periodic table of the chemical elements
14. Carries a negative charge
15. The horizontal rows in the periodic table
17. a covalent is the sharing of electron pairs between atoms
20. a non-metal with semiconducting properties, used in making electronic circuits.
22. the number of protons in the nucleus of an atom, which is characteristic of a chemical element and determines its place in the periodic table.
23. producing electricity.
27. atom or molecule with a net electrical charge.
28. an atomic orbital is a mathematical function describing the location and wave-like behavior of an electron in an atom.
29. a compound with particular chemical properties including turning litmus blue and neutralizing or effervescing with acids
30. the atomic number is 12

1. Most reactive chemical element and group 17 in the periodic table
2. a metallic chemical element that is easily formed into sheets and wires
3. An alkaline earth metal
5. An atom is the smallest unit of ordinary matter that forms a chemical element.
8. the outermost shell of an atom containing the valence electron
10. A substance that has only 1 atom
11. occurs in minute quantities in Earth's atmosphere and trapped within the rocks of Earth's crust.
12. The atomic number is 19 and it’s an alkali metal
16. odourless reactive gas, the chemical element of atomic number 8
18. A substance characterised by high electrical and thermal conductivity
19. Zinc is a slightly brittle metal at room temperature
21. a subatomic particle of about the same mass as a proton but without an electric charge
24. Elements can be found
25. The smallest particles of a substance that usually has more than 1 atom
26. soft silvery-white metal