54 is your answer to this question
Answer: 20.2
Explanation:
Mass of isotope 1 = 20
% abundance of isotope 1 = 90.5% =
Mass of isotope 2 = 22
% abundance of isotope 2 = 8.0% =
Mass of isotope 3 = 23
% abundance of isotope 3 = 1.5% =
Formula used for average atomic mass of an element :

Therefore, the average atomic mass of the element is 20.2.
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The immensely strong heat creates conviction cells to create movement as it follows the currents.
The sodium in soda lowers the melting point and makes the ice melt more slowly than it would in plain water because with the addition of any substance, there are fewer free water molecules available to form bonds together and freeze