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This is made of two or more elements that are combined chemically, has different chemical properties than those of its individual elements, and can only be separated by chemical means.
What is a compound?
This is one of the principal parts of an atom, has a positive electric charge, and is found in the nucleus of an atom.
What is a proton?
This is a specific form of matter composed of only one type of atom. It cannot be divided into different types of matter.
What is an element?
This is one of the principal parts of an atom, has no electric charge, and is found in the nucleus of an atom.
What is a neutron?
This is two or more elements that are combined physically, rather than chemically.
What is a mixture?
This is the smallest significant part of an atom, has a negative electric charge, and orbits around the nucleus.
What is an electron?
This is a variation of an atom or atoms based on the loss or gain of an electron; it changes the charge of an atom.
What is an ion?
The vertical columns of the periodic chart
What is a group or family?
This is the central core of an atom.
What is a nucleus?
The seven horizontal rows of the chart are called?
What is a period?
This is the total average number of protons and neutrons in an atom.
What is atomic mass?
What is formed when two or more atoms join together chemically?
What is a molecule?
This is a unit of measurement for the mass of an atom.
What is an atomic mass unit?
Sharing electrons
What is ionic bonding?
the donating of electrons between cations and anions
The first orbital can only hold _____ electrons.
What is two?
What is an isotope?
This type of atom is represented by 4 protons, 4 electrons, and 4 neutrons.
What is neutral?
Atomic mass-atomic number=?
What is neutrons?
Atoms bond (or react to each other) with their electrons in the outermost orbital. What is the name of these electrons?
What are valence electrons?
How many electrons are elements striving to have in their outer orbital?
What is eight?
The periodic table organizes elements by their
What is atomic number?
Which orbital has the lowest energy level?
The one closest to the nucleus.
This portrays electrons moving around the nucleus in orbitals representing energy levels.
What the Bohr model?
The organization of electrons around the nucleus of an atom
What is the electron configuration?