Atomic Number and Periodic Table

What is the atomic number for Lead (Pb)

• 207

• 125

• 82

• 94

What is the center of an atom called?

What is a subatomic particle contained in the nucleus with a positive charge?

• Proton

• Nucleus

• Neutron

• Electron

Which are of the following are subatomic particles. Select three:

• Protons

• Neutrons

• Electrons

• Nucleus

The atomic number will tell me... (select three)

• Number of Protons

• Number of Electrons

• Number of Neutrons

• What element is it

Tags

NGSS.MS-PS1-1

Hydrogen has an atomic number of 1. How many electrons does hydrogen have?

• 1

• 2

• 4

• 0

Tags

NGSS.MS-PS1-1

Silicon has an atomic number of 14 and an atomic mass of 28. How many neutrons does it have?

• 14

• 28

• 2

• 10

Tags

NGSS.MS-PS1-1

What is the charge of an electron?

• Postive

• Negative

• No Charge

What is the charge of a proton?

• Positive

• Negative

• No charge, Neutral

What is the charge of a neutron?