b) 1 × 10^-6 g
c) 1000 g
d) 0.01 g
e) 0.001 g
f) 1 × 10^9 g
The (standard) unit of mass is gram. So, the complete name of each of the units is the name of the numerical value followed by the term "gram".
The complete names are:
In numerical representation of numbers, the meaning of the given numbers are:
deci
micro
kilo
centi
milli
giga
To complete the names, we simply add "gram" to the above representations. So, we have:
decigram
microgram
kilogram
centigram
milligram
gigagram
Read more about names of numerical values at:
B. The number of electrons ranges from 1 to 3.
C. The number of neutrons ranges from 0 to 2.
D. The number of protons ranges from 0 to 2.
The correct answer is C.
A substance is said to exhibit isotopy if the number of proton and neutron in the nucleus of the atom differs, whille the number of proton and electron are the same. Hydrogen has three isotopes and each of the isotopes has different number of neutron. Hydrogen 1 has no neutron but have 1 proton, hydrogen 2 has 1 neutron and 1 proton and hydrogen 3 has 1 proton and 2 neutrons.