Chemistry Challenge 2

Which subatomic particle has no charge?

• Proton

• Electron

• Neutron

• Nucleus

Which of the following has a positive charge?

• Proton

• Electron

• Neutron

• Nucleus

What atom matches this electron configuration 1s2 2s2 2p6 3s2?

• Neon

• Aluminum

• Magnesium

• Potassium

What atom matches this electron configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d10?

• Zinc

• Nickel

• Copper

• Germanium

The electronic configuration for Cu is 1s2 2s2 2p6 3s2 3p6 4s1 3d10

• True

• False

What electron configuration matches an oxygen atom?

• 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p5

• 1s2 2s2 2p6

• 1s2 2s2 2p4

• 1s2 2s2 2p6 3s2 3p6 4s2 3d1

How many electrons does Si contain?

• 28

• 2

• 4

• 14

How many neutrons does Si contain?

• 2

• 4

• 14

• 28

The electron configuration of an atom is 1s2 2s2 2p6. How many electrons does it have?

• 2

• 4

• 6

• 10

Which has the greater electronegativity? Cl or Al

• Cl

• Al