Question

8]how are electrons are present in this How many elemento? ans:​

Answer 1

Explanation:

The atomic number of an element is 20. Atomic number is equal to the number of electrons present in a neutral atom. Thus, the element with atomic number 20 has 20 electrons. Out of 20 electrons, 2 electrons are present in the K-shell and 8 electrons are present in the L-shell.