Want this question answered?
Helium atom has 2 electrons.
helium has 2 electrons
Helium has two neutrons and two protons in its nucleus.
Water has no helium (He) atom. Chemically water is H2O and there is no He atom present in water.
Neutral. An atom has as many negative electrons in its shells as there are positive protons in its nucleus. Thus overall the positive and negative charges are balanced out. Should an atom gain or lose an electron it will then become an 'Ion' which will have an overall negative or positive (respectively) charge.
3
2
Twelve. Each proton has one positive charge.
Helium atom has 2 electrons.
Something is neutral when there are just as many positive charges as negative charges. A normal atom has just as many positive protons in its nucleus as it has negative electrons orbiting around its nucleus.
It depends on the atomic weight and how many positive, negative, and neutral charges are in the atom. Marshmellows!
Helium has one kind of atom: helium.
helium has 2 electrons
Helium has two neutrons and two protons in its nucleus.
Water has no helium (He) atom. Chemically water is H2O and there is no He atom present in water.
2
Neutral. An atom has as many negative electrons in its shells as there are positive protons in its nucleus. Thus overall the positive and negative charges are balanced out. Should an atom gain or lose an electron it will then become an 'Ion' which will have an overall negative or positive (respectively) charge.