atoms or elements

Question 1

whats an atom (2)

Answer 1

• smallest unit of matter
• parts of molecule

Question 2

whats a molecule

Answer 2

made up of 2 or more chemically bonded atoms

Question 3

whats a compound

Answer 3

2 or more different elements that can be separated into simpler substances by chemical reactions (NaCl, H20)

Question 4

what does the bonding of elements rely on

Answer 4

the capability of each to gain or lose electrons

Question 5

whats an ion

Answer 5

an atom that has become electrically charged by losing or gaining one or more electrons

Question 6

atoms want the same electronic configuration as which element group

Answer 6

noble gases

Question 7

why do atoms want the same electronic configuration as noble gases

Answer 7

for stability

Question 8

what does the number of valence electrons refer to

Answer 8

the electrons on the outermost shell

Question 9

what does the valence/oxidation number refer to

Answer 9

the number of electrons lost or gained to achieve a noble gas configuration