Question

Na has 12neutrons and 10 electrons .which of the following statement is correct​

Answer 1

Answer:

since atomic number refers to number of protons in atom and in neutral State they are equal to number of electrons and when we talk about an ion it mean that only electrons are removed therefore atomic number will remain same and mass number will also remain same therefore Na+ will have 10 atomic number and 22 mass number

Answer 2

Explanation:

(a) Na+ has atomic number 10 and mass number 22