Question 9 Which statement is true: The atomic mass of an atom is equal to the number of neutrons in the nucleus The atomic numb
er of an atom is equal to the number of neutrons in its nucleus The atomic weight of an atom is the sum of neutrons plus electrons The atomic weight of an atom is the sum of its protons and neutrons
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 answer is true. Tourism produced an estimated 14 percent of the region’s Gross Domestic Product in 2013, but, the ships that bring in the tourists dump waste into the ocean
The answer is true. Desertification across the Mediterranean will show how local and regional authorities are affected by climate change. This will affect the productivity of ecosystems in semiarid and arid regions
