Question

holla;pls help guys I need help.​

Answer 1

5 is the atomic no.

5 is the no. of protos because atomic no. equal to no. of proton = no. of neutron

5 is the no. of neutron same reason given above

x is the boron

Answer 2

a) 5 indicates the atomic number of the element.
b) 5
c) Mass no. - atomic no.= no. of neutrons
11-5= 6
Therefore, no. of neutrons = 6
d) The element is Boron.