They are different words to describe the same thing. An atom is an element.
isotopes
number of protons
Such atoms are isotopes and belong to the same element.
No. Atoms differ in number of protons, neutrons and electrons.
Because of isotopes
An element is a composition of many atoms. Thus you can hold NaCl (salt) in your hand. You can't hold the atoms it makes up.
no. elements are defined by their atomic number (the number of protons).
No, the isotopes of a single element differ in the no. of neutrons
yes other than the electron count may differ.
Gold is gold...a gold compound has other atoms bonded to the gold atoms, but the gold atoms don't really change.
The key difference that causes atoms of one element to differ from all other elements is the number of protons in their nucleus. This number, known as the atomic number, determines the element's specific properties.
An atom is the smallest particle there can be and can't be broken down any further while compounds are composed of two or more different atoms of elements.