Asample of gaseous neon atoms at atmospheric pressure and 0 °c contains 2.69 * 1022 atoms per liter. the atomic radius of neon is 69 pm. what fraction of the space do the atoms occupy? what does this reveal about the separation between atoms in the gaseous phase?

Which is true of the reactants in this displacement reaction? fe + 2hcl fecl2 + h2 a. the reactants are located to the left of the arrow in the chemical equation. b. the reactants contain 1 iron atom, 2 hydrogen atoms, and 1 chlorine atom. c. the reactants are the atoms, molecules, or compounds formed in the reaction. d. the reactants have the same physical and chemical properties as the products.

Different isotopes indicate that an element will have different numbers of

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery