An isotope has an atomic number of 15 and a mass number of 31. The number of proton it contains is

samadafoo

9 years ago

the answer is 15 because number of proton is equal to atomic number since there is no charge

Balogunsalam

9 years ago

U all wrng bcus to the rules of an atom we are given that atomic no=no of proton therefore d ansa is=15

Xtelah

9 years ago

The ans should be 15 since the number of proton equals to the atomic number

Deholyone

9 years ago

Atomic number is equal to proton. The ans is =15

Deholyone

9 years ago

The atomic number of an element is equal to the number of proton. Ans=15

shittu hoyinkansolar

9 years ago

it is d question dat has fault we cant be asked to look.for d no of protons cos d atomic no has already be given wic is also d proton.we are supposed to look 4 d neutron wic makes 16 d answer not 15.@love100

Love100

9 years ago

who knows if they were referring to the neutron num@pootu.it Ws specially specified to look for d proton num not d neutron num,mind u,jamb questions are sometimes tricky,so don't set d question urself by going for d neutron num.

shittu hoyinkansolar

9 years ago

so y did d admin.choose 16 @ love100

Chibuike10

7 years ago

B is correct cux atomic number is d number of proton in d nucleus of an atom...I.e. 15 is still d proton

Tonyrex11

9 years ago

the answer is 15

Myschool Kelly

9 years ago

Thanks for your contributions. Correction has been made.

Omejeb

9 years ago

Plz some people should mind hw they reason

Elbrain

9 years ago

Proton = Mass No/2

Proton = 31/2

Proton = 15.5(Approximation)

Proton = 16.

shittu oyinkansola

9 years ago

D ans shuld be 16.the formula is mass no:-proton+neutron.

Atomic no is also proton.

So to find d proton is the mass no-the atomic no.dat is 31-15:16.so d answer is 16

shittu oyinkansola

9 years ago

D ans shuld be 16.the formula is mass no:-proton+neutron.

Atomic no is also neutron.

So to find d proton is the mass no-the atomic no.dat is 31-15:16.so d answer is 16