The answer is D) a neutron.
When we say an atom's mass is, like 5 atomic mass units actually we are saying that the total number of the neutrons and protons in its nucleus is 5.
The mass of a neutron and a proton is each one atomic mass unit.
Mass of a neutron is approximately 1 atomic mass unit.
Answer:
increase
Explanation:
because in endothermic reaction heat is absorbed
Answer: is C
Explanation:
Both the atomic mass and the atomic number increase from left to right
Answer:
Lake Ontario and St Lawrence Seaway
Explanation:
The Great Lakes are connected to the Atlantic Ocean through the St. Lawrence Seaway.
