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Structure Of Atom

Question
CBSEENCH11005352

Write the electronic configurations of the first ten elements in the periodic table.

Solution

Electronic configuration of first ten element:

Element

Atomic number (z)

Electronic configuration

1.Hydrogen (H)

1

1s1

2.Helium (He)

2

1s2

3.Lithium (Li)

3

1s2 2s1

4.Berylium (Be)

4

1s2 2s2

5.Boron (B)

5

1s2 2s2 2p1

6. carbon (C)

6

1s2 2s2 2p2

7.Nitrogen (N)

7

1s2 2s2 2p3

8.Oxygen (O)

8

1s2 2s2 2p4

9.Fluorine (F)

9

1s2 2s2 2p5

10. Neon (Ne)

10

1s2 2s2 2p6