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biochem 2.1-2.6
| 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 |