Question

4. Which statement gives you enough

information to say that the atom is
electrically neutral?
O A. The atom has 7 protons and 7
electrons.
OB. The atom has 4 neutrons and 4
protons.
O C. The atom has 19 electrons and 19
neutrons.
OD. The atom has 15 neutrons and 15
electrons.

Answer 1

part a gives us enough information about the atom for a neutral eltric charge.

Thanks

Answer 2

Answer: The atom having 7 protons and 7 electrons is electrically neutral.

Step-by-step explanation:

There are 3 subatomic particles present in an atom. They are: protons, electrons and neutrons

• Protons: They carry positive charger and are found in nucleus.
• Electrons: They carry negative charge and are found around the nucleus.
• Neutrons: They dos not carry any charge and are found in nucleus.

Atomic number is defined as the number of protons or number of electrons present in a neutral atom. It is represented by Z.

Z = Atomic number = Number of electrons = Number of protons.

Mass number is defined as the sum of number of protons and number of neutrons present in an atom. It is represented as A.

A = Mass number = Number of neutrons + Number of protons.

For an atom to be electrically neutral, the atom must have equal number of protons and electrons.

Hence, the atom having 7 protons and 7 electrons is electrically neutral.