An atom is neutral. Its nucleus contains two protons and two neutrons. How many electrons does the atom have?
A. Four
B. Two
C. Three
D.
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SUBMIT

we need to know which atom you're talking about and then you need to say what the mass number is then we can tell how many electrons there are.

(I think)

there are no statements provided but here is why:

sulfur belongs to group 16 because it can be found in nature whether it is in a free or combined state.

hope this

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.