I need to find their molar mass please it’s due at 12

Your lost

Dollar tree headset

So free

Freer then a public restroom

Your literally dog water

0 ❗ PR ️‍♂️

Earnings check ✅, oh wait you have none 0️⃣⬅❌

freer then a girl at a party with 3 whiteclaws

Youre lost like your dad, hes never coming home. Literally free, freer than a dollar off coupon to dollar tree, I packed you down like I did your step sis last night.0 earns 0 PR , walking shi.tter welcome

Explanation:

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.