The number of protons.
The number of proton's in the nucleus.
element
yes
IsotopesThe number of protons in the nucleus of an atom determines the element. The number of neutrons can vary. If two atoms of the same element have a different number of neutrons in their nuclei, they are isotopes of that element.
false
A combination of two atoms of different elements results in a molecule. A combination of two atoms of the same exact element results in two atoms of the same element stuck together, not a molecule. There is no name for this that I know of. --------- 1. Two oxygen atoms: a molecule of oxygen - O2. Many gases has diatomic molecules. Ozone has three oxygen atoms in molecule. 2. Allotropes can be formed from many atoms: allotropes of carbon, sulfur, phosphorus.
you know that two atoms are the same element if they have the same atomic number, aka number of protons in the nucleus.
They would have to be atoms of the same element, and the same isotope of that element.
Yes. If two atoms have the same number of protons then by definition they are the same element.
Because there is no difference in the electronegativity between the two atoms as they are atoms of the same element and the electron pair is equally shared in the bond.
Two atoms of same element (for a given isotope) are identical and hence have the same atomic radius.
The number of protons, and therefore their atomic number. Also -of coarse- the number of electrons of these two atoms are the same.
Yes. The number of protons defines the element.
Diatomic
Molecule
element
yes
The number of Neutrons -Apex