1. The Atom Flashcards
What is a Proton?
The positive part of an atom found in the nucleus.
What is a Neutron?
The neutral part of the atom found in the nucleus.
What is an Electron?
The negative charged part of an atom found orbiting the nucleus.
What relative charge does a Proton have?
+1
What relative charge does a Neutron have?
0
What relative charge does an Electron have?
-1
Where are the protons and neutrons situated in the atom?
In the nucleus
What are the rings that hold electrons in the atom called?
Electrons shells
The number of protons in the nucleus of an atom is called its…
Atomic number
The total number of protons and neutrons in an atom is called its…
Mass number
What is an Ion?
An ion is an atom with either more protons than electrons (positively charged ion) or more electrons than protons (negatively charged ions).
What is an isotope?
Isotopes are atoms of an element with the normal number of protons and electrons, but different numbers of neutrons.
Isotopes have the same atomic number, but different mass numbers.
What is a Formula?
The amount and kinds of atoms found in a molecule.
What is a Chemical Bond?
A chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms.
What is a Molecule?
Two or more atoms chemically joined together (bonded).
