Do all atoms have valence electrons?

Answer 1

It depends on the atom. An atom is made of 3 subatomic particles- a negatively charged electron, a positively charged proton, and a neutral neutron.

If the number of electrons and the number of protons are different, then the atom has a net charge. If the number of electrons and the number of protons are the same, then the atom is said to be neutrally charged. Changing the number of neutrons affects the mass and therefore important traits of each atom, but does not affect its charge.

Atoms that have a net charge are called 'ions.'

Answer 2

Neutral atoms have no net charge. The number of electrons in their orbitals in the electron cloud is equal to the number of protons in the nucleus. There is a bit more to this, and, because you are standing in the doorway that marks the threshold of pretty much all of chemistry, we'll just look a bit deeper. When an atom forms, the nucleus has some protons and neutrons in it (except hydrogen-1). The atom, after it is formed, will eventually "pick up" some electrons. But remember that the electrons are an "unhappy" group of charges. They're negative, and they don't like others of their kind. Like charges repel each other, right? And electrons will repel each other. But they manage to find a way to get along around an atomic nucleus, and this gives rise to the formation of electron shells. So we have orbiting electrons around all atoms, and the electrons have found a way to get along to make this happen. But the electrons don't like shells that are not full because there is an "electronic symmetry" that occurs in atoms with full electron shells. There is a "magic" in full electron shells that occurs because the electrons in the electron cloud in atoms with full shells have a "harmony" in their collective movement. The consequence of this (and it is a most important one!) is that some atoms will want to loan out or borrow or share electrons because by doing so, the electrons in their electron clouds will be in "harmony" with each other. Let's touch on this. If an atom is one electron short of having a full outer shell, it will want to borrow an electron. Yes, the electron count will exceed the nucleus' proton count. But too bad. We all know that the nucleus is waaaaaaaay in there, and the electrons have to find a way to all get along waaaaaaaay out here. So borrowing an electron is what the electrons want! That's why valence shell configurations run things in chemistry. They (the electrons) call the shots. Got a neutral atom with a single electron in its valence band? No problem. The rest of the electrons will pimp that lone electron out in a New York minute. If an atom is one electron short of a full valence shell, the electrons will collectively snatch one up from another atom (which conveniently needs to lose an electron) to fill the shell. Lastly, whether an atom loans or borrows electrons because the electrons want to "be happy" in their arrangements, a chemical bondforms between atoms that do the loaning and borrowing! These are the ionic bonds. Covalent bonding is the same thing, except on a "small scale" wherein participating atoms find a "happy medium" by sharing electrons (instead of loaning and borrowing) to form those covalent bonds. The electrons just want to be happy in their arrangements, and the way the electrons are behaving in the electron clouds will drive the contracts atoms make with other atoms in chemical bonding. The structures of the electron shells and the number of electrons in them drives that chemical bonding.

Answer 3

All elements have chemical symbols that may be used to create a formula for the element. In most cases, it is simply a statement that the element is present and in which state of matter, e.g. Cu(s), Hg(l).

Answer 4

All atoms have a net zero charge because all atoms have protons (+ charge),

neutrons(neutral no charge) and electrons(- charge). But when we put atoms into a solution it becomes ions (atoms with + charge and - charge).

Answer 5

No.Atoms generally have no net charge. An atom with a charge is called an ion.

Answer 6

All except a hydrogen ion (proton) which has no electrons at all.

Answer 7

No they are not.