Question

A Helium atom has an atom of 4u and two protons in its nucleus. What percentage of neutrons does it have?

Answer 1

Hint : Helium may be an element with the symbol He and number 2. It's a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the primary within the inert gas group within the table . Its boiling point is the lowest among all the weather.

Complete Step By Step Answer:
Alpha particle, positively charged particle, identical to the nucleus of the helium-4 atom, spontaneously emitted by some radioactive substances, consisting of two protons and two neutrons bound together, thus having a mass of four units and a positive charge of two.
Formula used:
Number of Protons + No. of Neutrons = (No. of electrons) = nucleon number .
Mass number of He = 4
Number of Protons in He = 2
Using the formula we have
No. of Protons + Number of Neutrons = nucleon number .
No. of Neutrons = nucleon number – number of Protons
No. of Neutrons = 4-2 = 2
Therefore, Number of Neutrons in Helium atom = 2
The number of protons within the nucleus of an atom is understood as its number (Z) and it's this number that determines the element . Elements are defined by their chemistry, and chemistry is all about the interactions of the electrons of the atom, not the nuclei. The amount of electrons during a neutral atom is usually an equivalent because of the number of protons in its nucleus.

Note :
Electrons are a type of subatomic particle with a negative charge. Protons are a type of subatomic particle with a positive charge. Protons are bound together in an atom's nucleus as a result of the strong nuclear force. Neutrons are a type of subatomic particle with no charge.