Well, to keep it simple, the number of electrons is usually the number of protons in the element, which is the atomic number. For instance, hydrogen has 1 proton and 1 electron, while Lead, Pb, has 82 protons and electrons. This is, of course, when the elements are naturally occuring. There are isotopes for elements which change the number of protons or electrons, thus changing the charge.
the valence electrons cause the chemical reations. the valence electrons decide that element attract to which element.
Rarely. The number of valence electrons of an element depends on it's position on the periodic table. Any given element can have between 1-8 valence electrons. The number of valence electrons increases left to right on the periodic table, while the number of protons, which determine the atomic mass and identity of an element, increase in general. Therefore the number of valence electrons can only equal the number of protons at the 8th element and below (neon).
The number of electrons an element has determine the organization. This table helps in making predictions about how an element will chemically react.
It is simply the atomic number on the periodic table. So let us take an example at random Barium 56 - it quite simply has 56 electrons.
The Atomic Number of an element is the same as the number of protons in the nucleus of an atom of that element and/or the number of electrons a in neutral atom of that element.
The periodic table can be used to quickly determine characteristics (number of valence electrons for example) of an element.
the valence electrons cause the chemical reations. the valence electrons decide that element attract to which element.
The number of electrons is equal to the number of protons in that atom. An easy way to view that is with the Bohr Model.
There is none, but a neutral atom is called a neutron. There is no neutral element.
They determine many things. They can be used to predice hybridization, determine octet, be used to assign formal charges. The simplest answer would be for a intro to chem class, they determine the number of electrons in the atom's "outer ring"
Rarely. The number of valence electrons of an element depends on it's position on the periodic table. Any given element can have between 1-8 valence electrons. The number of valence electrons increases left to right on the periodic table, while the number of protons, which determine the atomic mass and identity of an element, increase in general. Therefore the number of valence electrons can only equal the number of protons at the 8th element and below (neon).
The number of electrons an element has determine the organization. This table helps in making predictions about how an element will chemically react.
It is simply the atomic number on the periodic table. So let us take an example at random Barium 56 - it quite simply has 56 electrons.
The atomic number on the periodic table is the number of protons for the element.
The number of protons determine the element. It is equal to the atomic number. The number of electrons is equal to the number of protons only of the atom is neutral.
The Atomic Number of an element is the same as the number of protons in the nucleus of an atom of that element and/or the number of electrons a in neutral atom of that element.
A neutral atom has the same number of electrons as it does protons. The atomic numbers on the periodic table for each element are the number of protons. So, look up the element on the periodic table, note its atomic number, and you will then know the number of protons and electrons in a neutral atom of that element. For example, magnesium (Mg) has atomic number 12. So a neutral Mg atom would have 12 protons and 12 electrons.