Answer:
elements in the same column have the same number of neutrons. elements with similar mass are placed in the same column.
Answer:
Step one : read the directions
Step two: complete the assignment
Explanation:
Batteries Produce DC current while homes produce AC current.
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Answer:
The atomic mass unit is 1/12 of an atom of carbon 12, and is a very small amount to represent in kilograms:
is atomic mass unit.
This is why the benefits of the atomic mass unit is that it makes the representation of atomic masses easier in terms of the simplicity of the numbers that are used to represent the masses. Also using the atomic mass unit it is easier to compare the masses of different atoms, These numbers would be very small and would require negative powers of 10 to represent them, so it is more convenient to use the atomic mass unit.
Answer:
A is a gas becasue it contracts and the containers change.