Atoms and Elements Flashcards
Each element is made up of atoms that differ from the atoms of other…
elements.
An element can be identified by… in the nucleus of its atoms.
An element can be identified by the number of protons in the nucleus of its atoms.
Every atom of an element has the same number of…
protons.
Scientists have given each element a different atomic number, which is the…
number of protons in its nucleus.
Although all atoms of an element have the same number of protons, they may have a different number of…
neutrons.
What are Isotopes?
Atoms with the same number of protons and a different number of neutrons.
An Isotope is identified by its mass number, which is the sum of the…
protons and neutrons in the nucleus of that atom.
Although isotopes have different mass numbers, they react the same way …
chemically.
