Question

Q9) An element 'X' has atomic number 19 and mass no. 39
1)
Find the number of electrons in X
ii)
Find the number of protons in X
Find the number of neutrons in X
Write the electronic configuration of X
iv)
v)
Is it a metal or non metal?
vi)
Identify element X
Site​

Answer 1

Answer:(1) 19 (2) 19 (3) 20 (4) 2,8,8,1 or 1s2,2s2,2p6,3s2,3p6,4s1,3d0. (5)metal (6) Pottasium. hope it helps, pleaseark me as Brainliest