The mass of an atom is so small that there is a unit called the atomic mass unit (amu) used to express it. One atomic mass unit is roughly equal to the mass of a proton or neutron, which are the subatomic particles found in the nucleus of an atom. This unit is convenient for expressing the mass of atoms without dealing with very small numbers.
The atomic number is a measure of the number of protons in an atom's nucleus. It determines the element's identity on the periodic table.
The neutral atomic particle of an atom is called a neutron. Neutrons have no charge and are found in the nucleus of an atom along with protons.
Atomic radius is the measure from the middle of an atom to the outter edge. Usually mesured between two atom. Measure from the middle of one atom to the middle of another and then divide by two.
No, the sum of protons and neutrons in an atom is called the mass number, not the atomic number. The atomic number is the number of protons in an atom, which determines its chemical properties and its place on the periodic table.
The mass of an atom is so small that there is a unit called the atomic mass unit (amu) used to express it. One atomic mass unit is roughly equal to the mass of a proton or neutron, which are the subatomic particles found in the nucleus of an atom. This unit is convenient for expressing the mass of atoms without dealing with very small numbers.
the no. of protons or the no.of electrons inthe nucleus ofan atom is called the atomic number of that atom.
the atom's "atomic number"
The atomic number is a measure of the number of protons in an atom's nucleus. It determines the element's identity on the periodic table.
because it is from an atom. think about it atom-ic. not that hard of a concept
The neutral atomic particle of an atom is called a neutron. Neutrons have no charge and are found in the nucleus of an atom along with protons.
Atomic radius is the measure from the middle of an atom to the outter edge. Usually mesured between two atom. Measure from the middle of one atom to the middle of another and then divide by two.
Atomic mass
Exactly the mass of an atom expressed in atomic units of mass (u).
No, the sum of protons and neutrons in an atom is called the mass number, not the atomic number. The atomic number is the number of protons in an atom, which determines its chemical properties and its place on the periodic table.
Since the Earth is not a single atom, nor a collection of similar atoms, it does not have an atomic mass. Atomic mass is a measure of how much matter is contained by a specific atom.
it is the branch of physics that deals with the structure and the behaviour of an atom is called atomic physics