The mass of an atom of element x is equivalent to the total mass of 7 hydrogen atoms

Answers

Answer 1
hydrogen mass is 1, the atom with mass number 7 is Lithium

Related Questions

The temperature of 150 mL of water is 25°C. What must happen for the temperature of the
water to increase to 35°C?
A. Thermal energy must be transferred to the water to increase the average kinetic
energy of the water molecules.
B. Thermal energy must be transferred from the water to decrease the average
kinetic energy of the water molecules.
C. Water must be removed to decrease the thermal energy.
D. More water must be added to increase the thermal energy.

Answers

Answer:D

Explanation:

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