Question

what is atomic number? write electronic configuration of na,p,CL,V,FE,Cr​

Answer 1

Answer:

Atomic no is the no of electrons or protons present in an atom of an element.

Electronic configuration -

na=2, 8, 1

cl=2, 8, 7

Explanation:

Answer 2

Answer:

Atomic number is tells about the no of protons and electrons present in an atom.

Na (sodium) : 1s2, 2s2, 2p6, 3s1

P ( Phosphorus): 1s2, 2s2, 2p6, 3s2, 3p3

Cl ( Chlorine) : 1s2, 2s2, 2p6, 3s2, 3p5

Fe ( Iron) : 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d6

V ( Vanadium) : 1s2 2s2, 2p6, 3s2,3p6, 4s2, 3d3

Cr ( Chromium) : 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d4