Pls help i'll mark you the brainlest What force is needed to make ball fall on Earth if it has a mass of 13kg

An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.

What’s the theoretical yield of solid lead