4. Which of the following compounds is
molecular?
A. NaF
B. Al3PO4
C. CO2
D. KC1

CO2(C)

Explanation:

This is because there is a mutual sharing of electrons between the atoms or elements...That's to say covalent bond exist between them.

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

→

no but i do not usually comment or use my voice that much when it comes to social media