Periodic table
what is shown on the periodic table? What does it contain?
Elements
what is the only element that occurs without a neutron in its nucleus?
hydrogen
which subatomic particle has a negative atomic charge?
electrons
during which type of bonding do atoms share electrons?
covalent bonding
what element is a noble gas?
Argon, krypton, radon, xenon, helium, neon
what are the two most abundant elements in the universe?
Hydrogen and helium
which subatomic particle has a positive atomic charge?
protons
what does the subscript 2 describe in the chemical formula CO2
2 oxygen atoms
is hydrogen a metal or non-metal?
which 2 elements is liquid at room temperature?
mercury and bromine
what is the only element that occurs without a neutron in its nucleus?
hydrogen
H2O2 is the chemical formula for what?
glucose
is iron a metal or non-metal?
metal
which 2 elements are found in all organic compounds?
carbon and hydrogen
which two particles are found in the nucleus of an atom?
proton and neutron
an atom with different numbers of protons and electrons is defined as what?
ion
which group are good conductors of heat and electricity?
metals
how many protons, neutrons, and electrons does a hydrogen atom have?
1, 0, 1
C6H12O6 is the chemical formula for what?
carbon monoxide