Science PeTa

2. a column of elements in the periodic table
4. a substance formed when two or more chemical elements are chemically bonded together
6. Which element has the lowest atomic mass?
7. metals consist of the chemical elements lithium, sodium, potassium, rubidium, caesium, and francium
9. an element that has properties that are intermediate between those of metals and nonmetals.
13. Earth Metals six chemical elements in group 2 of the periodic table
14. Which element is number 28 on the periodic table?
15. a row of chemical elements
16. Gas To which element group does argon belong?
17. radius the distance from the centre of the nucleus to the outermost shell containing electrons.
19. metals a chemical element that lacks the characteristics of a metal and that is able to form anions, acidic oxides, acids, and stable compounds with hydrogen.

1. a subatomic particle found in the nucleus of every atom
3. energy the energy required to remove an electron from a gaseous atom or ion
4. Bonding a lasting attraction between atoms, ions or molecules
5. Bonding This type of bonding occurs between two atoms of the same element or of elements close to each other in the periodic table
8. They are reactive nonmetallic elements
10. Dot Structure a drawing of a molecule that illustrates the connectivity of the compound
11. Electrons the electrons in the outermost electron shell of an isolated atom of an element
12. Matter made up of one kind of metal
18. Bonding the complete transfer of valence electrons between atoms