A Period 2 element has the following successive ionization energies. Identify the element... 1st: 1087 kJ/mol

2nd: 2353 kJ/mol

3rd: 4621 kJ/mol

4th: 6223 kJ/mol

5th: 37832 kJ/mol

6th: 47279 kJ/mol

7th: 55261 kJ/mol

8th: 69875 kJ/mol

9th:08473 kJ/mol

Explanation:

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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.

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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.