No - the lightest element Hydrogen has three known isotopes
No, isotopes of light elements exist as well. For example, there are several isotopes of the lightest element, hydrogen.No, even the lightest element (hydrogen (H)) has isotopes. These are called Deuterium and Tritium.All elements have isotopes but some of them are very unstable and have disappeared in nature over time.
No, Gold and several other elements have only one stable isotope, Promethium & Technetium as well as all elements heavier than Bismuth have no stable isotopes.
Isotopes are atoms of the same element that are only different by the number of neutrons they have
Only some special diagrams represents isotopes of the same element.
Elements with no stable isotopes include technetium (element 43) and promethium (element 61) and all elements heavier than lead (elements 83 and higher). Bismuth, element 83, is virtually stable with an extremely long half life of 1.9 x 1019 years.
Isotopes of the same element ONLY differ in mass.
isotopes have varying amounts of electrons ^ The above is wrong. Isotopes of an element vary in the amounts of neutrons within the nucleus only.
Iron is an element, and there is only one element called iron (Fe). There are no iron element(s), but if you mean isotopes, then some iron isotopes are stable, and some aren't. No known element is stable in of it's isotopes.
No. The only difference between 2 isotopes of the same element is the number of neutrons.
The only natural element without a neutron is hydrogen. There are isotopes (heavier versions) of hydrogen that have 1, or even 2, extra neutrons, but those isotopes are rare compared to the most common form of hydrogen found throughout the cosmos.
Atoms of the same element with different atomic masses are known as isotopes. Isotopes differ only by the number of neutrons present in the nucleus of the isotopes. The number of protons is the same for all isotopes of an element (because if there were different numbers of protons, then the atoms would not be of the same element).
An element is defined by the number of protons, so this cannot vary. Isotopes of a particular element are different in the number of neutrons within the atoms. These isotopes are said to be comparatively "lighter" or "heavier" than other isotopes based on the total of protons and neutrons (atomic mass).