TEK 6D review

What is the electron configuration of a neutral oxygen atom?

• 1s2 2s2 2p3

• 1s2 2s2 2p4

• 1s2 2s2 2p2

• 1s2 2s2 2p6

How many valence electrons does a chlorine atom have?

• 6

• 8

• 7

• 10

What is the electron configuration of a neutral magnesium atom?

• 1s2 2s2 2p6 3s1

• 1s2 2s2 2p6 4s2

• 1s2 2s2 2p6 3s2

• 1s2 2s2 2p6 3s3

How many valence electrons does a sodium atom have?

• 2

• 3

• 1

• 4

What is the electron configuration of a neutral sulfur atom?

• 1s2 2s2 2p6 3s2 3p3

• 1s2 2s2 2p6 3s2 3p6

• 1s2 2s2 2p6 3s2 3p2

• 1s2 2s2 2p6 3s2 3p4

How many valence electrons does a phosphorus atom have?

• 10

• 8

• 5

• 2

What is the electron configuration of a neutral potassium atom?

• 1s2 2s2 2p6 3s2 3p6 4s1

• 1s2 2s2 2p6 3s2 3p6 4s2 4p6

• 1s2 2s2 2p6 3s2 3p6 4s2 4p1

• 1s2 2s2 2p6 3s2 3p6 4s2

How many valence electrons does a helium atom have?

• 6

• 4

• 1

• 2

What is the electron configuration of a neutral neon atom?

• 1s2 2s2 2p3

• 1s2 2s2 2p6

• 1s2 2s2 2p8

• 1s2 2s2 2p4

How many valence electrons does a silicon atom have?

• 6

• 8

• 4

• 2