STAAR Review 8th Grade

What is the Symbol for Iron?

• Fe

• Ir

• I

• Fa

What is the symbol for Calcium?

• Ca

• C

• Cl

• Cu

What element has the symbol Cu?

• Copper

• Calcium

• Carbon

• Iron

Lithium is found in Group 1 on the Periodic Table. How many Valence Electrons does it have?

• 1

• 2

• 3

• 4

Helium is a Noble Gas found in Group 18. How many Valence Electrons does it have?

• 1

• 2

• 3

• 4

What is the atomic number of Nitrogen?

• 1

• 5

• 7

• 10

What is the atomic number of Krypton?

• 2

• 18

• 36

• 45

What is the atomic mass of Silicon (Si)?

• 28

• 32

• 45

• 79

If Helium (He) has an atomic mass of 4, how many neutrons does it have?

• 0

• 2

• 4

• 8

If Zinc (Zn) has an atomic mass of 65, how many neutrons does it have?

• 35

• 65

• 100

• 0