Answer:
The atomic weight of an atom is the sum of its protons and neutrons
Explanation:
The weight of an atom is dominated by the amount of matter contained in the dense and tiny nucleus of an atom. In the nucleus, protons and neutrons are found. Protons are massive nuclear particles that are positively charge. Neutrons are also massive and they carry no charges.
The atomic weight is given as the sum of the protons and neutrons. Electrons have little to no weight.
The main vent is the main outlet for the magma to escape. Secondary vents are smaller outlets through which magma escapes. The crater is created after an eruption blows the top off the volcano
At least 7 billion people
