The explosion of an atomic bomb in the atmosphere releases many radioactive isotopes into the environment. one of the isotopes is 90sr. via a relatively short food chain, it can enter the human body. considering the position of strontium in the periodic table, explain why it is particularly harmful to humans.

Schrodinger and heisenberg developed an alternate theory about atomic nature that contradicted some of bohr's model of the atom. how do changes resulting from new technology and evidence affect the reputation of the atomic theory?

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

What is the atomic number of an atom that has 6 protons