Question

Fill in the missing information: atom or ion? number of number of protons symbol check all that apply electrons OP neutral atom cation anion 27 27 X ? F neutral atom cation anion neutral atom cation anion 14 13

Answer 1

1)

Number of proton is 27

Atomic number = number of proton = 27

Atomic number is 27 for Co

Now use:

Charge = number of proton - number of electron

= 27 - 27

= 0

Answer:

Co, neutral atom, 27, 27

2)

Atomic number of F is 9

Since charge is -1, this its anion

number of proton = Atomic number = 9

Now use:

Charge = number of proton - number of electron

-1 = 9 - number of electron

number of electron = 10

Answer:

F-, anion, 9, 10

3)

Number of proton is 14

Atomic number = number of proton = 14

Atomic number is 14 for Si

Now use:

Charge = number of proton - number of electron

= 14 - 13

= +1

Since charge is positive, it is cation

Answer:

Si+, cation, 14, 13