Compounds comprised of the same number and kids of atoms but which differ in their atomic arrangement are...?

Question

I've been through the glossary of my chemistry book and can't seem to figure out the answer to this--all the definitions are slightly different.

Compounds comprised of the same number and kinds of atoms but which differ in their atomic arrangement of those atoms are known as:

a) isotopes
b) isomers
c) homologs
d) allotropes

Please back up your answer with a reference. Thank you! :)

Answer 1

b) isomers

It looks like the exact definition.

Answer 2

Isotopes are kinds of an element, for this reason their nuclei have the comparable atomic quantity — the style of protons in the nucleus — yet distinctive mass numbers because of the fact they incorporate distinctive numbers of neutrons. The be conscious isotope, meaning on the comparable place, comes from the undeniable fact that all and sundry isotopes of an element are placed on the comparable place on the periodic table. jointly, the isotopes of the climate type the set of nuclides. A nuclide is a undeniable variety of atomic nucleus, or extra oftentimes an agglomeration of protons and neutrons. Strictly conversing, that's extra ideal to declare that an element mutually with fluorine includes 1 good nuclide extremely than that it has one good isotope. In scientific nomenclature, isotopes (nuclides) are laid out in way of the call of the particular element accompanied via a hyphen and the style of nucleons (protons and neutrons) in the atomic nucleus (e.g. helium-3, carbon-12, carbon-14, iodine-131 and uranium-238). In symbolic type, the style of nucleons is denoted as a superscripted prefix to the chemical image (e.g. 3He, 12C, 14C, 131I and 238U).

Answer 3

b) isomers