The answer to this question is a
Answer: Identifies the number of protons a single atom of the element contains.
Explanation: The atomic number helps people identify elements according to the number of protons one atom of the element has. It essentially defines the element. While having a neutral charge, it also provides the number of electrons the element has (in one atom).
Answer:
The metal responds in a certain way with dilute HCl to give it's corresponding chloride and hydrogen gas is liberated.
Answer:
supernova
An exploding star is known as a supernova
There are 600 hours.
explanation
each day has 24 hours and we want to know how much hours is equivalent to 25 days so we multiply 24 times 25 which is 600.
