2. Deep roots to go into the permafrost
<span>Isotopes are atoms of the same element with the same number of protons and same number of electrons but with <span>different
number of neutrons. They differ in the number of neutrons that is why
they also differ in mass numbers. Since they have the same number of
protons, they have the same atomic number.
For instance, when the
nucleus of the isotope with a 68.926 amu, there are 30 protons and 39
neutrons in the nucleus. The best example for this is Zn (zinc-69
isotope) and Ga (gallium-69 isotope) which has 68.926 amu and 68.925 amu
respectively.
</span></span>
Answer:
E) HBr
Explanation:
Because Bromine (Br) isn't part of the original formula for Apirin. (I answered this based on the assumption that the letter "A" in option C was a typo of sorts, since there is no element with a chemical symbol of just "A" that I am aware of. If this is incorrect, then I apologize.)
Answer:
Atomic number is 8 and mass number is 17.
Explanation:
From the figure,
The number of protons= 8
The number of neutrons = 9
Any atom contains equal number of protons and electrons.Hence, the atomic number of element is 8.
The atomic number eight element in the periodic table is "Oxygen.
And mass number is 17.