Seatwork #2

What is the lightest subatomic particle that moves around the nucleus?

• e^-

• n⁰

• p⁺

Which of the following is an ion?

• Carbon-12

• F

• Mg²⁺

• Rn

What is the name of the element in the image?

• Neon

• Nitrogen

• Silicon

• Sodium

How many neutrons are there in the notation?

• 0

• 11

• 12

• 23

What is the atomic number in the notation?

• 0

• 11

• 12

• 23

What is the mass number of the atom in the picture?

• 8

• 10

• 12

• 16

What is the charge of the atom?

• 2-

• 0

• 2+

Which is the heaviest among the four isotopes below?

• Calcium-40

• Calcium-42

• Calcium-43

• Calcium-44

The atom in the picture is a/an ___________.

• anion

• cation

• neutral atom

How many electrons does the atom contain?

• 18

• 20

• 22

• 24