The charge on a tin atom that has lost four electrons is 4+.
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.
The overall charge on an atom will depend on the ratio of protons to electrons in that atom. If the numbers match, the overall charge will be zero. It's a neutral atom. But if electrons have been "captured" or "loaned out" by the atom, an ion is created, and its charge will be negative if it has captured electrons, or positive if it has loaned out electrons. Charge will vary by integer amounts, i.e., the charge will be -1, -2, -3, etc. for the capture of 1, 2, or 3 electrons, respectively, or +1, +2, +3, etc. for the loaning out of 1, 2, or 3 electrons, respectively. Simple and easy.
NoYes. A neutral atom will have the same number of protons and electrons.
Chromium's atomic number is 24. A neutral atom of chromium would thus have 24 protons and 24 electrons. Since we're dealing with Cr3+, though, we need to subtract 3 electrons from this number, giving us 21.
protons, electrons and neutrons :):):):):):):):):):):)::):):):):):)::)::-):}:}::}:}
It is a chemical process whereby one or more electrons from one atom are removed and attached to another atom. This will create a negative charge in the atom from which the electron(s) have been removed, and a positive charge in the atom to which the electron(s) have become attached, resulting in a positive to negative attraction between the two atoms, which will then bond to form a molecule.
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.
In the compound hydrogen peroxide (H2O2), electrons have been transferred to the oxygen atom, giving it a partial negative charge.
To find the fraction of electrons removed, we need to calculate the total charge of the copper ball when neutral, then compare it to the charge when +50 nC. Each electron has a charge of -1.6 x 10^-19 C. The number of electrons removed can be found by dividing the difference in charge by the charge of an electron. This will give us the fraction of electrons removed.
The overall charge on an atom will depend on the ratio of protons to electrons in that atom. If the numbers match, the overall charge will be zero. It's a neutral atom. But if electrons have been "captured" or "loaned out" by the atom, an ion is created, and its charge will be negative if it has captured electrons, or positive if it has loaned out electrons. Charge will vary by integer amounts, i.e., the charge will be -1, -2, -3, etc. for the capture of 1, 2, or 3 electrons, respectively, or +1, +2, +3, etc. for the loaning out of 1, 2, or 3 electrons, respectively. Simple and easy.
NoYes. A neutral atom will have the same number of protons and electrons.
air has been removed and electrons flow
Chromium's atomic number is 24. A neutral atom of chromium would thus have 24 protons and 24 electrons. Since we're dealing with Cr3+, though, we need to subtract 3 electrons from this number, giving us 21.
OIL RIGOxidation Is Loss (of electrons)Reduction Is Gain (of electrons)So no, a molecule which has lost electrons has a positive charge and so has been oxidised
The number of protons (each has charge = +1) in an atom identify the element, e.g. hydrogen (1 proton), helium (2 protons), etc. If the number of electrons is the same, then the atom is neutral (total charge = 0). For example, a lithium atom has three protons in the nucleus (charge = +3) and three electrons (charges -1,-1,-1). The total charge is +3 -1 -1 -1 = 0. If the number of electrons is different than the number of protons, as when lithium would lose an electron, we say the lithium atom has been ionized--it is now a lithium ion and the charge is +3 -1 -1 = +1. If the lithium ion loses another electron, we would say it is doubly ionized or twice ionized and the charge would be +3 -1 = +2.
There are ways that atoms and molecules can gain or lose electrons. If an atom / molecule gains an electron, it will have a negative charge. If it loses an electron, it will have a positive charge. That having been said, the standard charge of an atom should be neutral. An atom will always have a nucleus made up of a specific number of protons (and in most cases the same number of neutrons). The number of electrons will be the same as the number of protons. Since protons have a positive charge and electrons have a negative charge, the equal number of the two will balance each other off. The only item that can vary is the number of neutrons. When the number of neutrons is different from the number of protons, the atom is called an isotope. Since neutrons have a neutral charge, though, this has no effect on the charge of the atom.
the charge on an Ion is - if electrons have been added :)