Chem Mcat
Terms
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- radius of a nucleus is ___ angstroms
- 10^-4
- Protons and neutrons, collectively are called
-
nucleons...
held together by the strong nuclear force - the strong nuclear force holds together the three___that make up each nucleon
- quarks
- surronding the nucleus at a distance of about ___ to ___ angstroms are electrons
- electrons
- mass of an electron is how many times smaller than the mass of a nucleon.
- 1800
- the electron unit "e" is called the
- electronic charge (1 e is equal to 1.6x10^-19 coulombs)
- protons charge and mass
- 1+ ... 1.0073
- neutrons charge and mass
- neutral... 1.0087
- electrons charge and mass
- 1-... 5.5x10^-4
- _____ are the building blocks of all compounds and cannot be decomposed into simpler substances by chemical means
- elements
- In Elements the A stands for
- mass number
- In Elements the Z stands for
- Atomic Number
- two or more atoms of the same elemetn that contain different numbers of neutrons are said to be
- isotopes
- radius of a nucleus is ___ angstroms
-
10^-4