The weight of an object is different on each planet because . 1.each planet is a different distance from the sun

2.each planet has a different force of gravity

3.mass of the object changes on each planet

4.mass changes with location

It’s number 2. Mass doesn’t change on planets but the gravity affects how much it weighs.

If a hydrogen atom is neutral, it must also have  one electron. an oxygen atom (o) has an atomic number of eight (8). this means a neutral oxygen atom has eight protons and eight electrons. the element actium (ac) has an atomic number of 89, so it has 89 protons and 89 electrons in a neutral atom