Midterm 1

Hydrogen (H)

1

1.01

1s1

Group 1 

Period 2

Helium (He)

2

4.01

1s2

Group 18

Period 1

Lithium (Li)

3

6.94

2s1

Group 1

Period 2

Beryllium (Be)

4

9.01

2s2

Group 2

Period 2

 

Boron (B)

5

10.81

2p1

Group 13

Period 2

 

 

Carbon (C)

 

6

12.01

2p2

Group 14

Period 2

 

 

Nitrogen (N)

 

7

14.0

2p3

Group 15

Period 2

 

 

Oxygen (O)

8

16.00

2p4

Group 6A

Period 2

x

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