2.4 Atoms, Molecules, Ions

Question 1

Elements and therefore atoms cannot be…

Answer 1

decomposed

Question 2

Define Atom vs Molecule

Answer 2

– smallest possible piece of an element
– smallest possible piece of a compound

Question 3

Define Ions

Answer 3

Atoms/molecules that have either a positive or negative charge

Question 4

Atoms are electrically__

Answer 4

neutral

Question 5

When do atoms change their suffixes?

Answer 5

when they become negative ions

Question 6

Metals tend to form__ ions, while nonmetals tend to form __ ions.

Answer 6

– positive
– negative

Question 7

List some general properties of metals and any exceptions

Answer 7

– solids (except Hg)
– silver (Except Au, Cu)
– shiny/lustrous
– malleable + ductile
– good conductor of heat + electricity

Question 8

List some general properties of nonmetals

Answer 8

– solid, liquid, or gas
– various colours + colourless
– dull
– solids are crumbly
– poor conduct of heat + electricity

Question 9

Define Diatomic Elements

Answer 9

elements which exist as molecules w/ 2 atoms which are covalently bonded

Question 10

Which atoms exist as multiatomic elements (in molecular form?)

Answer 10

– phosphorus (P4)
– Sulfur (S8)
– Carbon (C)

Question 11

What atomic model is dalton associated with?

Answer 11

billard ball

Question 12

What atomic model is thompson associated with?

Answer 12

plum pudding

Question 13

What atomic model is bohr associated with?

Answer 13

bohr model

Question 14

What atomic model is Schrodinger associated with?

Answer 14

Electron cloud