the mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes.
the mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes.
It represents the mass of the entire atom, including the protons, neutrons, and electrons.
It is approximately equivalent to the number of protons and neutrons in the atom.
The element symbol represents one mole of element , atomic number represents number of protons, atomic mass represents sum of protons and neutrons.
Atomic Mass represents the mass of atom. We use mass of protons and neutrons.
The average Atomic Mass represents the weighted average of the masses of the isotopes of the element.
Magnesium is a meta element. Atomic mass of it is 24.
The atomic weight
The element symbol represents one mole of element , atomic number represents number of protons, atomic mass represents sum of protons and neutrons.
Atomic Mass represents the mass of atom. We use mass of protons and neutrons.
Atoms atomic number represents their number of protons.
The atomic number represents the number of protons. The atomic mass represents the number of protons + neutrons.
The average Atomic Mass represents the weighted average of the masses of the isotopes of the element.
the only element with a mass number of 22 is sodium (Na) which has an atomic number of 11. This is because the atomic number only represents the number of protons in the nucleus, while the mass number represents the number of protons and neutrons in the nucleus.
Sigificance of the Symbol of an Element :- 1. Symbol represents name of the element. 2. Symbol represents one atom of the element. 3. Symbol also represents one mole of atoms of the element. That is, symbol also represents 6.022 x 1023 atoms of the element. 4. Symbol represents a define mass of the element (equal to Atomic Mass expressed in grams).
Magnesium is a meta element. Atomic mass of it is 24.
The atomic weight
the number above the symbol is the atomic....... of that element.
The element is Iodine (I). It has an atomic mass of about 126.9.
The atomic number of an element determines the number of protons that are present in that element. The atomic size refers to the distance that the outermost valence electrons are from the nucleus.