Give electronic configuration of the following elements: (20) i) ca ii) ar iii) si

i) Ca = [Ar] 4s2

ii) Ar = [Ne] 3s2 3p6

III) Si = [Ne] 3s2 3p2

Explanation:

The Moeller diagram or Diagonals Rule is used to remember the order of filling of the atomic orbitals. It is simply a mnemonic rule.

The way to construct this diagram is to write the atomic energy levels (from 1 to 7) and the corresponding sub-levels next to it. Then diagonal lines are drawn from top to bottom.

The objective of the electronic configuration is to be clear about the distribution and the energetic order of the atoms, specifically, the distribution of the different levels and sub-levels of energy.

Electronic configuration:

Ca (Z= 20)

Ca: 1s2 2s2 2p6 3s2 3p6 4s2

Ar (Z= 18)

Ar: 1s2 2s2 2p6 3s2 3p6

Si (Z= 14)

Si: 1s2 2s2 2p6 3s2 3p2

answer; /// the amount of material dissolved in a measure of liquid(concentration) the above statement is (true); /// good luck

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.