How is the charge of the atom or ion determined from the number of protons neutrons and electrons present?

Answer 1

Atoms have protons, neutrons, and electrons. Protons and electrons have electric charge, but neutrons do not. Protons are positively charged, and electrons are negatively charged. An atom has the same number of protons and electrons. Because the atom has same amounts of positively and negatively charged particles, the atom is neutral and has no electric charge. The only time an atom becomes electrically charged is if it loses or gains protons or electrons to throw off the balance. For example, we know that hydrogen only has 1 proton, 1 neutron, and 1 electron. This hydrogen atom has not electric charge. Later on, the hydrogen atom gains a proton. This would mean that there is more positive charge than negative charge in the atom. The hydrogen atom is now electrically charged.

Answer 2

Each electron carries a negative charge of -1. Each proton carries a positive charge of +1. If the number of electrons and protons are equal, the net charge is 0. If there are more electrons than protons, the charge will be negative - by the amount that the number of electrons exceeds the number of protons. If you have an atom with 14 protons (silicon if you are interested) and 18 electrons, it will be an ion with a charge of -4 (+14 + -18 = -4). On the flip side if the atom has a deficiency of electrons you will wind up with an ion with a positive charge equal to the number of protons in excess of the number of electrons. For example, if an atom has 20 protons (calcium) and only 18 electrons, it will be an ion with a charge of +2 (+20 + -18 = +2).

Answer 3

If there are equal numbers of protons and electrons, an atom will be neutral. If there are more protons than electrons, the atom will become a positively charged ion. If there are more electrons than protons, the atom will become a negatively charged ion.

Answer 4

If the number of electrons is equal to the number of protons the atom is neutral.
If the number of electrons is larger than the number of protons the atom become an anion - negative charge.
If the number of electrons is lower than the number of protons the atom become a cation - positive charge.

Answer 5

Of the two types of fundamental subatomic units mentioned in the question, only the protons affect the electrical charge of an atom at all: Each proton contributes one positive charge.

Answer 6

If the number of protons is equivalent to the number of electrons the atom is neutral.

If not - it is an ion, anion or cation.

Answer 7

Charge = number of protons minus number of electrons.

Answer 8

yes