Answer:
hope this helps
Explanation:
The elements in the modern periodic table are arranged in order of their atomic numbers, which is the number of protons in the nuclei of the atoms of a an element. Each element has a unique atomic number. The atomic numbers are also whole numbers.
Cell theory states that all living things contain at least one cell, and there are certainly more types of living things than simply plants and animals. For example bacteria and fungi.
So your answer would be A.
Since the table does not accelerate, the upward and downward forces must cancel. Since the downward force of the table legs on the ground is the weight of the table and the book, 175N, this is also the force the pushing up on the table legs by the floor.
Alpha particles are composite particles consisting of two protons and two neutrons tightly bound together.
(not much explanation, I hope this is what you were looking for!)