Chemistry, asked by idoshad, 2 months ago

How many electrons, protons and neutrons will be present in X–, if atomic number of X is 9 and mass number is 19?

Answers

Answered by utkarsh1877

0

Answer:

P=9

N=10

E= -9

Explanation:

P=AN,MN=P+N,E=P

MN=19,P-MN=10 N=10

P=E,E= -9

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