Bohr Models and Subatomic Particles - Chemistry 8

What is the name of this element?

• Helium
• Hydrogen
• Argon
• Silver

What is the name of this element?

• Lithium
• Boron
• Carbon
• Neon

What is the mass number of this atom?

• 1
• 3
• 4
• 7

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

How many valence electrons?

• 2
• 3
• 5
• 10

What's a valence electron?

• electrons in the second energy level
• electrons in the outermost energy level
• the atomic number
• electrons in the first level

On the periodic table, Groups are

• Horizontal rows

• Vertical columns

On the periodic table, Periods are

• Horizontal rows

• Vertical columns

The innermost energy level has a maximum of how many electrons?

• 1

• 2

• 6

• 8