Same number of protons; identical or very similar chemical properties.
istopes have different numbers of neutrons and most of their elements have several istopes
neutrons
Atoms of the same element are alike in terms of their number of protons, which determines the element. However, atoms of the same element can differ in the number of neutrons they contain, leading to different isotopes of that element.
How isotopes same as element alike?
neutrons
Isotopes are atoms of the same element that have the same number of protons and electrons, but different numbers of neutrons. This results in isotopes having the same chemical properties but different atomic masses.
istopes
They have the same number of protons this is what makes them the same element but they differ in atomic mass and neutrons.
When all atoms in a substance are alike, the substance is an element. Each element is composed of atoms that have the same number of protons in their nucleus.
A substance in which all atoms are identical is called an element.
They have the same number of protons and electrons.
John Dalton postulated that atoms of the same element are exactly alike in his atomic theory developed in the early 19th century.