In 2n2 , if we put 3 we get 18 then why we do 2,8,8,18 ???
Answers
Answer:
ok this a ans I give you step by step with definition may be you like my answer
Explanation:
According to the 2-8-8 rule, the 3rd orbital has only 8 electrons in its valence orbital, but from the formula 2n^2, the 3rd shell would have 18 electrons in its valence orbital. Why aren't they having the same number of electrons in the same shell?
Why are antiviral mattress protectors a priority for health and safety?
A mattress protector or a mattress cover is essentially a bedding item made to encase your mattress to protect you and your sleep
There is something called shielding. In this concept, inner electrons shield the outer electrons from Seeing the nucleus. Kind of like being a few rows back in the mosh pit from a concert. The people in front of you sometimes block your view. If you cannot see then you will not feel the same attraction.
So, if we compare electrons in orbitals like 3s, 3p, 3d, it turns out that the electrons in the 3s orbital have the ability to sneak in close to the nucleus so that it is not so shielded by the inner electrons (1s , 2s, and 2p). The 3p orbital cannot sneak in quite so close so it is shielded a b
In a calcium atom, the Bohr model of the atom is 2, 8, 8, 2, but in the Strontium atom it is 2, 8, 18, 8, 2? Shouldn't the third orbital be 8 instead of 18? Why give a different number for the third orbital?
What is the 2-8-8 Rule? What is it used for?
What is 2n^2 rule?
Why don't we put 18 electrons in a third shell as it has the capacity of 18 electrons?
Why does the third shell of an atom have 8 electrons when it has the capacity of 18 electrons?
Each energy level has different number of electrons. For example, we can find number of electrons in four energy level with following formula; 2n2.
1st energy level has
2n2=2.1^2=2 electrons (s)
2nd energy level has;
2n2=2.2^2=8 electrons (s+p)
3rd energy level has;
2n2=2.3^2=18 electrons (s+p+d)
4th has: 2.4^2 = 32 electrons. (s+p+d+f)