What are the mass number, the atomic number, and neutron number for each of the following particles?
(a) proton
(b) neutron
(c) alpha particle
What will be an ideal response?
(a) 1, 1, 0 (b) 1, 0, 1 (c) 4, 2, 2
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Which of the following statements about brown dwarfs is not true?
A) Brown dwarfs are supported against gravity by degeneracy pressure, which does not depend on the object's temperature. B) Brown dwarfs eventually collapse to become white dwarfs. C) All brown dwarfs have masses less than about 8% that of our Sun. D) Brown dwarfs form like ordinary stars but are too small to sustain nuclear fusion in their cores.
The general formula 
is that of
a.
an amide.
b.
an alkyl halide.
c.
an alcohol.
d.
none of these
During ?- decay
A) a neutron is transformed to a proton. B) a proton is transformed to a neutron. C) a neutron is ejected from the nucleus. D) a proton is ejected from the nucleus. E) the number of nucleons increases.
In covalently bonded materials the creep mechanism of dislocation glide generally starts at a temperature of _________percent of the melting temperature in kelvin.
Fill in the blank(s) with the appropriate word(s).