`1s^2 2s^2 2p^6 3s^2` विन्यास वाला तत्व है -

Examine the given electronic configurations. A- 1s^2 2s^2 2p^6 3s^2 3p^6 3d^(10) 4s^2 B- 1s^2 2s^2 2p^6 3s^1 C- 1s^2 2s^2 2p^6 3s^2 3p^6 D- 1s^2 2s^2 2p^6 3s^2 3p^6 4s^1 : Which elements belongs to the same group?

Examine the given electronic configurations. A- 1s^2 2s^2 2p^6 3s^2 3p^6 3d^(10) 4s^2 B- 1s^2 2s^2 2p^6 3s^1 C- 1s^2 2s^2 2p^6 3s^2 3p^6 D- 1s^2 2s^2 2p^6 3s^2 3p^6 4s^1 : Which element has highest metallic ch-aracter ?

Examine the given electronic configurations. A- 1s^2 2s^2 2p^6 3s^2 3p^6 3d^(10) 4s^2 B- 1s^2 2s^2 2p^6 3s^1 C- 1s^2 2s^2 2p^6 3s^2 3p^6 D- 1s^2 2s^2 2p^6 3s^2 3p^6 4s^1 : Which of these elements belongs to 4^(th) period ?

Examine the given electronic configurations. A- 1s^2 2s^2 2p^6 3s^2 3p^6 3d^(10) 4s^2 B- 1s^2 2s^2 2p^6 3s^1 C- 1s^2 2s^2 2p^6 3s^2 3p^6 D- 1s^2 2s^2 2p^6 3s^2 3p^6 4s^1 : Which element doesn’t participate in che-mical reactions generally ?

Name the element with the following electrons configuartions (i) 1s^2 2s^2 2p^6 3s^2 3p^1 (ii ) 1s^2 2s^2 2p^6 3s^2 3p^2 (iii) 1s^2 ""2s^2 ""2p^6 3s^2 3p ^6 3d ^5 4s^1

Name the element with the following electrons configuartions (i) 1s^2 2s^2 2p^6 3s^2 3p^1 (ii ) 1s^2 2s^2 2p^6 3s^2 3p^2 (iii) 1s^2 ""2s^2 ""2p^6 3s^2 3p ^6 3d ^5 4s^1