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