Using the periodic table, complete the table to describe each atom. type in your answers.

We have that  the missing components to complete the table to describe each atom is given as

A=7

B=7

C=N

D=26

E=30

F=Fe

From the question we are told that:

The First element has

The second  element has

Generally, for the First element we assess the two given Parameters and we Decipher the element to be Nitrogen

Hence

A=7

Number of protons present in an atom of Nitrogen is 7

B=7

Number of protons present in an atom of Nitrogen is 7

C=N

The element symbol of Nitrogen is given as N

Generally, for the Second element we assess the two given Parameters and we Decipher the element to be Iron

Hence

D=26

Number of protons present in an atom of Iron is 26

E=30

Number of Neutrons present in an atom of Nitrogen is 30

F=Fe

The element symbol of Iron is given as Fe

In conclusion

The Missing spaces are give as Follows

A=7

B=7

C=N

D=26

E=30

F=Fe

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increased stability in the completion of fluorine's outer shell.

yes the answer is total mass in unchanged   : )