periodic table: elements till Z=30

Question 1

1

Answer 1

hydrogen H 1s¹

Question 2

2

Answer 2

helium He 1s²

Question 3

3

Answer 3

lithium Li {He}2s¹

Question 4

4

Answer 4

beryllium Be {He}2s²

Question 5

5

Answer 5

boron B {He}2s²2p¹

Question 6

6

Answer 6

carbon C {He}2s²2p²

Question 7

7

Answer 7

nitrogen N {He}2s²2p³

Question 8

8

Answer 8

oxygen O {He}2s²2p⁴

Question 9

9

Answer 9

fluorine F {He}2s²2p⁵

Question 10

10

Answer 10

neon Ne {He}2s²2p⁶

Question 11

11

Answer 11

sodium Na {Ne}3s¹

Question 12

12

Answer 12

magnesium Mg {Ne}3s²

Question 13

13

Answer 13

aluminium Al {Ne}3s²3p¹

Question 14

14

Answer 14

silicon Si {Ne}3s²3p²

Question 15

15

Answer 15

phosphorus P {Ne}3s²3p³

Question 16

16

Answer 16

sulphur S [Ne]3s²3p⁴

Question 17

17

Answer 17

chlorine Cl [Ne]3s²3p⁵

Question 18

18

Answer 18

argon Ar [Ne]3s²3p⁶

Question 19

19

Answer 19

potassium K [Ar]4s¹

Question 20

20

Answer 20

calcium Ca [Ar]4s²

Question 21

21

Answer 21

scandium Sc [Ar]4s²3d¹

Question 22

22

Answer 22

titanium Ti [Ar]4s²3d²

Question 23

23

Answer 23

vanadium V [Ar]4s²3d³

Question 24

24

Answer 24

chromium Cr [Ar]4s²3d⁴

Question 25

25

Answer 25

manganese Mn [Ar]4s²3d⁵

Question 26

26

Answer 26

iron Fe [Ar]4s²3d⁶

Question 27

27

Answer 27

cobalt Co [Ar]4s²3d⁷

Question 28

28

Answer 28

nickel Ni [Ar]4s²3d⁸

Question 29

29

Answer 29

copper Cu [Ar]4s²3d⁹

Question 30

30

Answer 30

zinc Zn [Ar]4s²3d¹⁰

Question 31

from which subshell does an electron leave from in a transition metal

Answer 31

first from 4s then from 3d