Question

the element Uuq contains 12.8 percentage more neutrons compared to protons. what is the approximate mass number of it.​

Answer 1

Answer:

Mass Number = 242.592

Explanation:

Answer 2

Answer:

The approximate mass number of given element will be equal to 243.

Explanation:

The sum of number of electrons as well as number of protons in an atom is known as mass number.

The atomic number of Uuq element $= 114$

∴ The number of protons $=114$

Given the no. of neutrons 12.8% more than no. of protons.

Therefore number of neutrons $=114+\frac{12.8}{100} *114$

                                                  $=114+15=129$

Now, Mass number $=114+129=243$

Therefore the approximate mass number of element Uuq is 243.