Question | Answer |
the atom is the basic unit from which matter is constructed; a "thought experiment"; early 1800s | dalton's atomic theory |
the atom is the basic unit of elemental matter which exhibits the properties of the element, but the atom is make from subatomic particles | today's atomic theory |
the compact core of an atom | nucleus |
a substance that contains only one type of atom | element |
protons + neutrons = ? | mass number |
# of protons = ? | atomic number |
atoms of an element with different numbers of neutrons | isotopes |
a list of elements arranged by atomic number | the periodic table |
a weighted average of the atomic mass for all the naturally occurring isotopes of an elmeent | atomic weight |
number of protons + number of neutrons = ? | atomic mass |
the leements on the periodic table are divided into three categories.... name them | metals, nonmetals, metalloids |
elements in the same vertical column of the periodic table belong to the same group | group |
the atom is the basic unit from which matter is constructed; a "thought experiment"; early 1800s | dalton's atomic theory |
the atom is the basic unit of elemental matter which exhibits the properties of the element, but the atom is make from subatomic particles | today's atomic theory |
the compact core of an atom | nucleus |
a substance that contains only one type of atom | element |
protons + neutrons = ? | mass number |
# of protons = ? | atomic number |
atoms of an element with different numbers of neutrons | isotopes |
a list of elements arranged by atomic number | the periodic table |
a weighted average of the atomic mass for all the naturally occurring isotopes of an elmeent | atomic weight |
number of protons + number of neutrons = ? | atomic mass |
the leements on the periodic table are divided into three categories.... name them | metals, nonmetals, metalloids |
elements in the same vertical column of the periodic table belong to the same group | group |