Bohr Models & Isotopes

What is the name of this element?

• Helium
• Hydrogen
• Argon
• Silver

Tags

NGSS.MS-PS1-1

What is the mass number of this atom?

• 1
• 3
• 4
• 7

Tags

NGSS.MS-PS1-1

What is the atomic number of this atom?

• 2
• 4
• 6
• none of the above

Tags

NGSS.MS-PS1-1

What is a valence electron?

• Electrons in the first energy shell

• Electrons in the second energy shell

• Electrons in the outer shell

• Total number of electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence (outer) electrons does an Oxygen atom have?

• 2

• 6

• 8

• 16

Tags

NGSS.MS-PS1-1

If an atom of Sodium has a mass number of 23, it will have...

• 23 protons

• 11 neutrons

• 12 protons

• 12 neutrons

Tags

NGSS.MS-PS1-1

Protons + Neutrons =

• the average atomic mass

• mass number

• number of electrons

• APE MAN

How many electrons does Lithium have?

• 3

• 7

• 4

• 10

Tags

NGSS.MS-PS1-1

?

• Boron
• Carbon
• Nitrogen
• Lithium

Tags

NGSS.MS-PS1-1

?

• Beryllium
• Boron
• Barium
• Bromine

Tags

NGSS.MS-PS1-1