What is the 6th planet on our solar system?

Which sound characteristic is not affected by the relative motion of an object

Ain is , is 's of ? 0.62 0.79 1.27 1.50

Because atoms of elements in the same group of thbecause atoms of elements in the same group of the periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t fe periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t f