Answer: A
Explanation: Protons and neutrons form the nucleus of the atom, with electrons orbiting it.
74 is the answer u find it by subtracting the protons(atomic number) from atomic mas, so basically... 127-53 =74 neutrons
Answer:
45 neutrons
Explanation:
Bromine has 35 protons and a mass number of 80. a) How many neutrons does the atom of bromine have? The mass number = protons + neutrons. Bromine has a mass number of 80 and 35 protons so 80-35 = 45 neutrons.
Answer:
The higher the temperature, the faster the particles move, the lower the temperature, the slower.
