How many sodium ions are there in 62g of sodium oxide Na2o?

2 sodium ions

Explanation:

Given:

Sodium oxide = Na₂O

Find:

Number of sodium ion

Computation:

Molecular mass Na₂O = (23×2)+16

Molecular mass Na₂O = 62

In sodium oxide = 2 sodium ions

So, in 62 g of sodium oxide = 46 g of sodium ions

indium, and thallium have three electrons i think

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.