Americium-241 is widely used in smoke detectors. the radiation released by this element ionizes particles that are then detected by a charged-particle collector. the half-life of 241am is 433 years, and it decays by emitting alpha particles. how many alpha particles are emitted each second by a 14.0-g sample of 241am?

it should be p1 v1 = p2 v2

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.