The isotopes of an element all have the same a.(blank) number but they have different b.(blank) numbersa. atomic, massb. atomic, mass

Explanation:

An isotope is an atom of the same chemical element that has the same number of protons in its nucleus, but not the same number of neutrons.  

Therefore, this isotope atom will have the same atomic number and will be located in the same place of the periodic table of the main chemical element, but different mass number.  

In other words, the isotopes of a chemical element have a different mass although they have the same atomic number, which is directly related to the number of protons in the nucleus of the atom.

wind moving at higher speeds will transfer more energy to the water, resulting in stronger waves.

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6