Why the electronic configuration of potassium is 2,8,8,1 and not 2,8,9?
Octet rule
Electronic configuration of potassium
Why is the electronic configuration of potassium 2,8,8,1 and not 2,8,9
Write the electronic configuration of 19K40.
The valency of the element having electronic configuration 2,8,8,1 is –
Name the element with the electronic configuration 2, 8, 8, 1.
Choose the correct option
(a) Rutherford's alpha-particle scattering experiment discovered
A. Electron B. Proton
C. Atomic nucleus D. Neutron
(b) Number of valence electrons in O2− is :
A. 6 B. 8
C. 10 D. 4
(c) Which of the following is the correct electronic configuration of potassium ?
A. 2, 8, 9 B. 8, 2, 9
C. 2, 8, 8, 1 D. 1, 2, 8, 8