ILL MARK THE BRAINILST THINGY THINGY Is it possible to identify contact and non-contact forces? If so, identify the type of force in the following scenario: A flag is moving in the air. What type of force (contact or non-contact) is causing the flag to move, like a wave, in the air?

Anderyeryeryy enrhrtn hrt hrnth ytjtyh tyh tyj ty

Explanation:ytj tyjyu yujyu j

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.  

the answer your looking for is c).