Matter
What is the building block of all matter?
Atoms
What are most of the elements on the periodic table?
Metals
What group can gain one electron before having a full shell?
Halogens
What is the abbreviation of an element called?
Symbol
What do elements in a period all have in common?
The number of energy levels
What term describes when substances intermingle but do not react?
What can have properties of both metals and nonmetals?
Metalloids
What group has elements that form 2+ cations?
Alkaline earth metals
What does the atomic number always indicate about an element?
The number of protons
Fluorine has the highest value of _____________.
Electronegativity
What are the charges of the three particles that make up an atom?
Proton (+), neutron (0), electron (-)
What are gaseous elements considered?
Nonmetals
What group is inert?
Noble gases
Cation (+), anion (-)
Noble gases are stable, so they have the highest _____________.
Ionization energy
What substance is made up two or more different atoms?
Compound
Conduct heat/electricity, ductile (stretching), malleable (shaping), shiny
What group has elements that can have various charges?
Transition metals
What is an isotope?
Same number of protons, different number of neutrons
Francium has the largest _____________.
Atomic radius
Is hydrogen gas (H2) an atom, molecule, or compound?
Molecule
What is the only liquid metal at room temperature?
Mercury
What group has one small ionization energy?
Alkali metals
How is atomic mass calculated?
Weighted average of an element's isotopes
How does the atomic radius compare to the ionic radius for anions?