Chemistry

6. number number of protons in the nucleus of an atom
8. substances made up of two or more different types of atoms that have joined together.
10. tiny but heavy particles found in the nucleus of an atom
12. is shiny
13. two or more atoms joined together.
14. very small particles that make up all things.
17. metal gaseous, not malleable, not conductive, not ductile element
19. can be snapped
20. pure substances made up of only one type of atom.

1. can be made into wires
2. of electricity electricity can pass through
3. very light negatively charged particles found inside an atom
4. the central part of an atom made up of protons and neutrons
5. test flame test for presence of hydrogen gas
7. a combination of substances in which each keeps its own properties
9. number number of protons and neutrons
11. elements that are lustroes, semiconductive, not malleable, not durable and not ductile
15. is Bendy
16. elements that are lustrous, malleable, solid, conductive and ductile
18. tiny but heavy positively charged particles found in the nucleus of an atom