Science, asked by PushkarNidagundi, 1 year ago

write the electronic arrangement of elements having number 19 20 and 11

Answers

Answered by Anonymous
9
⭐⭐⭐⭐ ANSWER ⭐⭐⭐⭐

❤ WHAT IS ELEMENT ❤

➡ An element is a pure substance that can neither be decomposed into nor formed from simple substances by ordinary physical or chemical means.

❤ ATOMIC NUMBER ❤

➡ The atomic number of an element is the number of protons and electrons present in the atom. It is also represented by the alphabet "Z".

❤ ELEMENTS OF 11, 19 AND 20 ❤

➡ ATOMIC NUMBER 11 : Sodium.
➡ ATOMIC NUMBER 19 : Potassium
➡ ATOMIC NUMBER 20 : Calcium

❤ ELECTRONIC ARRANGEMENT IN CONSECUTIVE SHELLS ❤

➡ SODIUM :- (2,8,1)
➡ POTASSIUM :- (2,8,8,1)
➡ CALCIUM :- (2,8,8,2)

⭐⭐ ALWAYS BE BRAINLY ⭐⭐
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