Question

calculate the number of neutrons 1. 14F9​

Answer 1

Answer:

Atomic number of Oxygen is 8

Atomic mass of Oxygen is 16

we know that

Mass number=No. of proton+No. of neutron

No. of neutron in O atom is =16−8=8

No. of proton in O atom=8                   (atomic number=no of proton)

No. of electron in O atom=8                 (no. of proton=no.of electron for neutral atom)

In O−2 ion

No. of electron=8+2=10

1mole=6.022×1023 ions

No. of electrons in 1mole of O−2=10×6.022×1023=6.022×1024

No. of protons in 1mole of O−2=8×6.022×1023=48.176×1023

No. of neutrons in 1mole of O−2=8×6.022×1023=48.176×1023

Answer 2

Step-by-step explanation:

Atomic number of Oxygen is 8

Atomic mass of Oxygen is 16

we know that

Mass number=No. of proton+No. of neutron

No. of neutron in O atom is =16−8=8

No. of proton in O atom=8 (atomic number=no of proton)

No. of electron in O atom=8 (no. of proton=no.of electron for neutral atom)

In O

−2

ion

No. of electron=8+2=10

1mole=6.022×10

23

ions

No. of electrons in 1mole of O

−2

=10×6.022×10

23

=6.022×10

24

No. of protons in 1mole of O

−2

=8×6.022×10

23

=48.176×10

23

No. of neutrons in 1mole of O

−2

=8×6.022×10

23

=48.176×10

23