Which of the following shows a possible evolution of a cave formation?

a.) soda straw > stalactite > column

b.) stalactite > soda straw > column

c.) soda straw > column > stalactite

d.) column > soda straw > stalactite

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.

→

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.