Fill in the blank. 1. you want to be shielded from all three types of nuclear radiation. if you find shielding that blocks radiation, then it will most likely also block the other two types. 2. when nuclear radiation enters the tube of a geiger counter, it the atoms of the gas contained in the tube. 3. the particles that make up protons and neutrons and are thought to be basic units of matter are

frequency, z, and the collision density, z, in carbon dioxide (co2), r 180 pm at 30 °c and 120 kpa

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.