Question

The atomic number of an element is 15 and mass no 31. calculate the no of electron, proton and neutron. identify the elements and write its electronic configuration​

Answer 1

Answer:

Phosphorus

Number of electrons= 15

Number of proton = 15

Number of neutron = 16

Electronic configuration = 2,8,5

Answer 2

Answer:

Given,

Atomic number of an element is 15 and mass number is 31.

So, the element is Phosphorous.

Electron⇒15

Proton⇒15

Neutron⇒31-15=16

Electronic Configuration of Phosphorus is (2,8,5).

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