Who Developed the law of octaves: Lavoisier

Dobereiner

Newlands

Mendeleev

Moseley

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.

Which of the following is not true about the atomic model of substances?

Na chemical reaction, activation energy increases the of the reactants. this outcome causes the particles to collide, which results in the of new products.