Bohr Models Dot Diagrams Atoms Ions Isotopes

How many protons are in an atom of magnesium?

• 3
• 12
• 24
• 40

An electron has a _____ charge.

• negative
• positive
• neutral

What is the name of this element?

• Helium
• Hydrogen
• Argon
• Silver

Tags

NGSS.HS-PS1-1

What element is represented in this Bohr Model?

• Carbon

• Hydrogen

• Aluminum

• Lithium

Tags

NGSS.HS-PS1-1

What is the name of this element?

• Lithium
• Boron
• Carbon
• Neon

Tags

NGSS.HS-PS1-1

What is the name of this element?

• Beryllium
• Boron
• Barium
• Bromine

Tags

NGSS.HS-PS1-1

What is the atomic number of this atom?

• 2
• 4
• 6
• none of the above

What group does this element belong to?

• Group 1: Alkali metals
• Group 18: Noble Gases
• Group 2: Alkaline-Earth Metals
• Group 17: Halogens

Tags

NGSS.HS-PS1-1

What element is this, AND how many valence electrons does it have?

• Helium, 2

• Hydrogen, 1

• Argon, 8

• Argon, 18

Tags

NGSS.HS-PS1-1

How many valence (outer) electrons does this atom have?

• 2

• 6

• 8

• 16

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2