They don't. Only atoms really have an atomic number, which is the number of protons in each atom, so when that number changes as in alpha and beta radiation the atom no longer has a neutral charge and becomes an ion. Gamma radiation is an electro-magnetic wave so it doesn't affect the atomic number and the particle is still an atom. Hypothetically, nd I'm not sure it's possible, alpha radiation would reduce the atomic number by 2, beta would reduce it by 1 and gamma doesn't reduce it at all anyway.
As elements undergo radioactive decay they lose both electrons and protons at a predictable rate. Eventually they will decay to lesser elements. An example is that Uranium will continue to decay into lower elements until it becomes lead.
This depends entirely on the type of decay an isotope undergoes.
Alpha decay emits a Helium nucleus, dropping the atomic number by 2, and the Atomic Mass by 4.
Beta decay converts a neutron into a proton and an electron, and emits the electron. This raises the atomic number by 1, but the mass remains constant
Beta + decay converts a proton to a neutron and emits a positron (an electron with a + charge). This lowers the atomic number by 1 and keeps the mass the same.
Gamma decay occurs when a nucleus is in a high energy state. the nucleus will give off a photon (gamma ray) to release energy and return to its ground state. This does not change the atomic number or mass.
An element's atomic number gives us the number of electrons surrounding the nucleus of an unionized atom of that element. It also tells us the number of protons in the nucleus of the atom. 6c is a carbon atom 6 in subscript is it's atomic number. it tells us that carbon atom has 6 electrons and 6 protons. If mass number is given we can find number of neutrons in nucleus also. no. of neutrons = mass number - atomic number. 6c12 , here 12 in superscript is mass number. no. of neutrons=12 - 6 = 6 (by using above formula. Also a knowledge of atomic number helps us determine the arrangement of electrons around the nucleus. Arrangement of electrons determines chemical properties of an element. Carbon's atom has 2 electron in K(first) shell and 4 electron in L (2nd) shell and thus to have octet(stable configuration) forms four covalent bonds and shows tetra valency. Mass number and atomic number give us n/p (neutron/proton) ratio which determines stability of nucleus and radioactivity. If an element is radioactive it's atom's nucleus will emit subatomic particles to gain stability.
The weak force
Deuterium is written 4 H 1 I'm not sure how to type superscript and subscript but the top number is the atomic weight and the bottom # is the atomic number or the amount of protons
An isotope is defined as: Each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element So basically, an isotope is from the same place (element) and has the same number of protons, but the number of electrons differ. So isotopes are not subatomic; the protons and electrons that make an isotope are subatomic.
Yes, isotopes of an element are the same element but with different numbers of neutrons in the nucleus and thus different atomic masses.
No. Atomic Number is defined as the number of positive protons, and when a ion is formed(irrespective of cation or anion) only negative electrons will be lost or added hence the proton number is constant.
The number of protons and neutrons does not change when an ion forms.
It depends on the atomic number. For example some atomic numbers create oxygen and others create metal such as zinc.
atomic number
The atomic number refers to the number of proton in a particular atom. As a matter of fact, number of proton = number of electrons in an atom. The number of electron changes as the atom forms ion.
1. The atomic number is equivalent to the number of protons in the atomic nucleus of a chemical element. The number of protons is identical for all the isotopes of an element. 2. The mass number is the sum of protons and neutrons in the atomic nucleus of an isotope.
Mg2+
No. The element's atomic number determines how it forms compounds.
All atomic nuclei contain protons (hydrogen has only one). The number of protons in the nucleus determines which element it forms, this is called the atomic number
It is 90.
Two electrons are trasfered from magnesium to oxygen and ionic bond is formed.
Since the actual weight of an atom is extremely small, a more convenient way of designating the relative mass of the various atoms is the atomic weight. The atomic weight of an atom was originally defined as the sum of the number of its protons and its neutrons. Unfortunately, this idea proved not valid as exact measurements of the actual weights of the various elements and sub-atomic particles were made. The new definition of an atomic mass unit is that it is 1/12 of the atomic weight of Carbon-12. Most listing of elements include isotopes to display an average atomic weight.