Question

Write the electronic configuration and identify the period,

group and block of elements bearing the following
atomic numbers: 17,24,29,49​

Answer 1

Atomic number : 17

Electronic configuration : 1s² 2s² 2p^6 3s² 3p^5

Period : 3

Group : 17 ( Halogen)

Block: p

Atomic number : 24

Electronic configuration : [Ar] 3d5 4s1

Period : 4

Group : 6

Block: d

Atomic number : 29

Electronic configuration : [Ar] 3d10 4s1

Period : 4

Group : 11

Block: d

Atomic number : 49

Electronic configuration :Kr 4d10 5s2 5p1

Period : 5

Group : 13

Block: p

Answer 2

Atomic number : 17

Electronic configuration : 1s² 2s² 2p^6 3s² 3p^5

Period : 3

Group : 17 ( Halogen)

Block: p

Atomic number : 24

Electronic configuration : [Ar] 3d5 4s1

Period : 4

Group : 6

Block: d

Atomic number : 29

Electronic configuration : [Ar] 3d10 4s1

Period : 4

Group : 11

Block: d

Atomic number : 49

Electronic configuration :Kr 4d10 5s2 5p1

Period : 5

Group : 13

Block : p