Homework Answers
neutral atom has equal number of electrons and protons
atomic number represents number of proton whereas atomic mass is the sum of neutron+proton
hence number of neutron will be = atomic mass - atomic number
Zn(65) : its atomic number is 30. so it will have 30 protons; it is neutral so it also has 30 electrons and neutrons will be 65-30=35. so this option is FALSE
Mg2+(25) : its atomic number is 12. so it will have 12 protons; it is dication so it will have 10 electrons and neutrons will be 25-12=13. so this option is FALSE
Cl-(35) : its atomic number is 17. so it will have 17 protons; it is anionic so it will have 18 electrons and neutrons will be 35-17=18. so this option is TRUE
V(51) : its atomic number is 23. so it will have 23 protons; it is neutral so it also has 23 electrons and neutrons will be 51-23=28. so this option is TRUE
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