Unit 1 Part 2 Test Go over answers

Density

100

Question 16

Why did ice cube sink?

B The liquid is less dense than the ice

200

Question 1

Where does the ball stop?

C. between C & D

300

Question 11

Which element has low density?

D. Hydrogen

400

Why does H have a low density?

It's has the lowest atomic mass of any element.

It's a gas.

500

Question 13

Why were liquids 2 & 4 the same? 

Same density. (it's a physical property)

Periodic Table

100

Question 3

Where does Pb (lead) go on the Table? 

C. 

200

Question 4

Cadmium (Cd) is most likely a

A

metal

300

Question 20

Germanium (Ge) has both metal & nonmetal properties. 

C Section 3  metalloids

400

Question 8

Which element is a metal?

4

500

Question 16

Copper (Cu) in a: metal, nonmetal, metalloid?

Metal

Atomic Properties

100

Question 14

The top number (X) is 

atomic number

200

Question 14

The Na (Y) is the :

element symbol

300

Question 14

The bottom number (Z) is the:

atomic mass

400

Question 7

Which statement is correct?

Na (11) has more protons than Carbon (6).

500

Question 16

Silicon is a : metal, nonmetal, metalloid

Metalloid

Chemical Property

100

Question 2

C

how the substance behaves in the presences of acid

200

Question 5

Which have similar chemical reactivity with Na?

D Potassium, in same GROUP 

300

Question 12

Copper (Cu) and Gold (Au) have similar properties. They are most likely

A. Same GROUP

400

Question 13

2 & 4 are the same because

they  have same boiling point

500

Question 17

Which are chemical properties?

A & D
Reactivity & Flammability

The REST

100

Question 6

Which is a good conductor of heat & electricity?

C

Na Sodium

200

Question 9

 Which has similar chemical properties as F (Fluorine)

Cl,

or Br,

or I

or At

In same GROUP!

300

Question 10

Which is a noble gas?

B 

Ne (Neon)

400

Question 19

Which indicates a chemical property?

D

Release energy when it reacts with water.

500

Question 16

Carbon (C) is

Nonmetal