Science Vocabulary

7. Negatively Charged.
8. Protons and Neutrons make a tight ball in the centre.
9. Is everything in that has Mass and Volume.
11. Pure substances made of more than one kind of atom chemically bonded.
12. Two or more atoms covalently bonded.
13. At atom that has gained (lost one or more E-).
14. The amount of matter in a given volume.
15. Number of protons + number of neutrons.
19. The atom is a basic unit of matter that consists of a dense, central nucleus surrounded by a cloud of negatively charged electrons.
21. No electrical Charge.

1. Is the measure of the amount of a solid figure.
2. Two or more atoms share valence electrons.
3. Pure substance made out of only one kind of Atom.
4. Positively Charged.
5. A table full of elements.
6. An atom's behaviour depends on the number of E- on it's outermost shell.
10. Has negative charge gained electrons.
16. A combination of different substances.
17. A particular matter with organised properties.
18. A chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion.
19. Number of protons.
20. Atoms with the same number of protons but different number of neutrons.