Will give major ! an object's mass is a measure of how much matter makes it up. an object's weight is a measure of the gravitational force that acts on it. an object's mass is always its weight.
a. doubleb. equal toc. proportional tod. half of

I know that A, B, and D are wrong, so C must be the answer. The best way to distinguish Mass and Weight is that Mass always stays the same. If your mass is 100kg on Earth, your mass will be 100kg on the Moon. Conversely, if your weight is 100kg on Earth, your weight on the Moon would be 16.5 kg. Does that help at all?

☆ionisation energy increases across a period from na -> ar☆ionisation energy decreases down a group from li -> fr☆ionic radius decreases across a period from na -> cl☆ionic radius increases down a groupfrom f -> ii hope it clarifies your doubts

Idon't know hope someone you