both covalent bonds and polar bonds
Molecule
The answer expected here is non-metal, and examples are carbon, chlorine, sulfur phosphorus. Metals have metallic bonds. However there are compounds where atoms of a metallic element form covalent bonds to other atoms of the same element.
covalent bond
No. Fluorine is an element. Two atoms of the same element will not form a polar bond because there is no difference in electronegativity.
Atoms do have the same properties as long as stable form of its corresponding element is not a molecule. For example H1 (Hydrogen) which is a single atom has the same properties that of Hydrogen as it doesn't require to be in a molecular form to be stable. On the other hand O1 (Oxygen) doesn't have the same properties as Oxygen that we breathe as that Oxygen is actually O2 which is actually necessary for it to remain stable.
atoms are made of protons, neutrons, and electrons.
the same type of atoms come together to form an element
Diatomic
Molecule
Elements with isotopic atoms? An isotope is the same form of an element, but with a different number of neutrons. An element with isotopes/"isotopic atoms" is simply an element with isotopes.
The answer expected here is non-metal, and examples are carbon, chlorine, sulfur phosphorus. Metals have metallic bonds. However there are compounds where atoms of a metallic element form covalent bonds to other atoms of the same element.
Two atoms of the same element and mass number.
ALLOTROPE
covalent bond
Did you mean, "What could be different about 2 or more atoms of the same element?" If you did, the answer is that they can have a different number of neutrons.
no
All atoms of the same element have the same number of protons and behave the same way chemically.