In an atom, the number of electrons is equal to the number of protons in the nucleus of the atom. This only varies in ions, where electrons have been added to an atom or removed to create a full outer shell.
Electrons
one proton has a positive charge that is equally as strong a the negative charge of one electron. Therefore, when there are an equal number of protons and electrons, the total charge of the atom is neutral.
In a neutral atom the number of protons equals the number of electrons.
For it to be balanced out, the number of protons has to be balanced to the number of electrons.
atomic number, number of electrons
Electrons
Electrons.
Protons are electrically positive charged, electrons are electrically negative charged, neutrons are electrically neutral. The number of electrons and protons is equal in a neutral atom. Protons and neutrons are in the atomic nucleus, electrons on electron shells, forming electron clouds.
You can only be sure of the number of electrons if the element is electrically neutral. If an element is electrically neutral, then the number of electrons is the same as the number of protons which is the atomic number of the element. For instance an electrically neutral atom of carbon, there are 6 electrons because there are 6 protons in a carbon atom.
Because an electrically neutral atom has an equal number of protons and electrons.
because the number of electrons are equal to the number of protons
Neutrons are neutral charged, protons are positively charged and electrons are negatively charged. So since there are same number of protons and electrons, the atom becomes neutral charged/ electrically neutral entity. Simple as that!
An atom has the same number of positive protons and negative electrons so the charges balance out to zero
Protons are electrically positive charged, electrons are electrically negative charged, neutrons are electrically neutral. The number of electrons and protons is equal in a neutral atom. Protons and neutrons are in the atomic nucleus, electrons on electron shells, forming electron clouds.
An electrically neutral atom has the same number of protons ( positive charged ) and electrons ( negatively charged ).
atomic number = number of protons = number of electrons (in a neutral atom)
An electrically neutral atom is one that has an equal number of protons and electrons.
An Isotope has the same number of Protons (and thus electrons in its electrically neutral state) but a different number of Neutrons. Ergo, an element is defined by the number of Protons in its nucleus.
All neutral atoms have the same number of protons and electrons as they are electrically neutral.
The number of electrons
Primarily, isotopes differ in the number of neutrons in the nucleus. Secondarily, because some combinations of protons and neutrons produce an unstable nucleus, they may differ by being radioactive.
In a electrically neutral atom, the number of positive charges in the atom's nucleus (with one charge being held on each proton in the nucleus), is balanced out by the number of negative charges present in the electron cloud round the nucleus (with one charge being held on each electron in the cloud). This means that in a neutral atom the number of Protons = the number of Electrons.
The atomic number of oxygen is 8 because oxygen has 8 protons in its nucleus.The atomic number of a chemical element (also known as its proton number) is always the number of protons found in the nucleus of an atom of that element, and identical to the charge number of the nucleus. It is conventionally represented by the symbol Z.The Atomic Number is a count of how many Protons are present in an atom of an element.The element Oxygen has 8 Protons in its atomic nucleus and therefore has an Atomic Number of 8.Note: in an electrically neutral atom the number of electrons in the electron cloud exactly matches the number of Protons in the nucleus of the atom, therefore electrically neutral oxygen will also have 8 electrons.
The atom has a nucleus in the middle made up of protons and neutrons. This nucleus is surrounded by a cloud of electrons which inhabit different energy levels at different distances form the nucleus. The electrons are negatively charged, the protons are positively charged and the neutrons are electrically neutral. An atom always has the same number of electrons as it does protons, so the atom itself is electrically neutral.