Actually the total abundance of the isotopes of any
element in this world must sum up to 100%. So we initially know that 12 C is
98.9 percent abundant, therefore the remaining of the 100 percent must be of 13
C, that is:
13 C = 100% - 98.9%
<span>13 C = 1.1% </span>
Answer:
2.409 x 10²⁴
Explanation:
There are two nitrogens for every mole of NH₄NO₃
Since there are two moles, that means there are 4 nitrogens
There are 6.022 x 10²³ atoms in every mole of any element
(6.022 x 10²³) x 4 = 2.4088 x 10²⁴
Use sig figs to round it to 2.409 x 10²⁴
A fluorine element has 7 valence electrons.
A stable fluorine ion should have 8 valence electrons.
So fluorine gains an extra electron.
Thus, the most stable monatomic ion is 
Answer:
HNO2
Explanation:
It is a pale blue solution and it is only known in solution and gas form.
