Bohr Model questions

How many valence electrons does this atom have?

• 2

• 4

• 5

• 7

What happens if this atom gets a +2 charge?

• The atom becomes unstable

• The atom becomes stable

• The atomic mass becomes 7.012

• The atom becomes a beryllium ion

What is the atomic mass of this atom ?

• 7

• 14

• 17

• 21

What is this element’s atomic weight?

• 10

• 12

• 20

• 30

How many valence electrons does this element have ?

• 0

• 7

• 9

• 19

When this atom becomes an ion, what will its charge be?

• 2-

• 1+

• 2+

• 4+

What element is this?

• neon

• carbon

• boron

• aluminium

What element is this picture showing?

• carbon

• argon

• neon

• helium

How many electrons are there in the valence shell?

• 2

• 5

• 6

• 8

What is the electron arrangement for this element?

• 2,8,5

• 2,5

• 2,4

• 2,8