Question

the number of electrons in an element X is 15 and the number of neutrons is 16 which of the following is the correct representation of the elements ​

Answer 1

Answer:

A IS CORRECT ANSWER

$phosphorous \ \frac{31}{15}$

Answer 2

Answer:

So Option ( a ) ₁₅X³¹ is the correct answer

Explanation:

We Have :-

An element X with 15 electrons and 16 neutrons

To Find :-

Correct Representation of the element

Solution :-

In an element

Number of electrons = Number of protons

Number of protons = 15

Atomic number = Number of protons

Atomic number = 15

Mass number = Number of protons + Number of neutrons

Mass number = 15 + 16

Mass number = 31

So element is represented by ₁₅X³¹

So Option ( a ) ₁₅X³¹ is the correct answer