The number of electrons are required to predict the charge of the ion.
An ion that has more electrons than protons has a negative charge.
An atom is a particle that has the same number of protons as electrons. For example sodium. A sodium atom has 11 protons and 11 electrons. A sodium ion might have 11 protons and 10 electrons, so it would have a charge of +1. If a sodium ion had 10 protons and 11 electrons, it would have a charge of-1.
It has 3 more protons than electrons. Protons are 1+ and electrons are 1-. So the charge on the hypothetical ion would be 3+
A magnesium ion will be smaller because there will be a greater Zeff on the electrons in the magnesium ion due to a greater number of protons in the nucleus.
Ion 2+=====
+1
A sodium atom contains eleven electrons and has a net neutral electrical charge, because the atom also contains eleven protons. A sodium ion contains only ten electrons and has an electrical charge of +1, because it also contains 11 protons.
An ion that has more electrons than protons has a negative charge.
The sodium ion has less electrons than protons whereas the sodium atom has an equal amount of protons and electrons
A sodium atom has 11 electrons so the total charge of all the electrons in a sodium ion is -10.
An atom is a particle that has the same number of protons as electrons. For example sodium. A sodium atom has 11 protons and 11 electrons. A sodium ion might have 11 protons and 10 electrons, so it would have a charge of +1. If a sodium ion had 10 protons and 11 electrons, it would have a charge of-1.
A neutral atom has an equal number of protons and electrons. Protons are positively charged, and electrons are negatively charged. Therefore if you have an ion with a -1 charge, it has one extra electron. So your ion has 85 protons.
The atomic number of sodium is 11 which means it has 11 protons and 11 electrons.
It has 3 more protons than electrons. Protons are 1+ and electrons are 1-. So the charge on the hypothetical ion would be 3+
Remember.. I f there are more electrons than protons in an ion the charge will be negative. Here there is a -4 charge because the electrons are higher than the protons, if it were the opposite the charge would be +4.
It has a positive (+) charge.
It has a positive (+) charge.