The basic units of matter and the defining structure of elements
What is the atom?
When an atom has extra electrons, it has a negative _____.
What is charge?
A lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds
What is Bonding?
The small, dense center of an atom, made up of protons and neutrons
What is the nucleus?
When an atom has less electrons than protons
What is Positive Charge?
The number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table
What is Atomic Number?
Positively charged particles found within atomic nuclei
What are protons?
An atom or molecule with a net electric charge due to the loss or gain of one or more electrons?
What is an Ion?
A process in which two atomic nuclei are combined to form a different element.
What is Fusion?
Uncharged particles found within all atomic nuclei
What are neutrons?
These gases have full outer energy levels and do not readily bond with other elements
What are Noble Gases?
A nuclear process in which the nucleus of an atom splits into two or more smaller, lighter nuclei.
What is fission?
Negatively charged subatomic particle located in a cloud around the nucleus
What are Electrons?
Specific energies that electrons can have when occupying specific orbitals?
Electrons can be excited to higher ______ by absorbing energy from the surroundings.
What are Energy Levels?
An atom that has a different number of neutrons (greater or lesser atomic mass) than the standard for that element.
What is an Isotope?