Which idea states that electrons are added to an atom, one at a time, starting with the lowest energy orbital, until all of the electrons have been placed in an appropriate orbital?

how many moles of magnesium hydroxide are in 15 mL of milk magnesia (density of magnesium hydroxide 2.34g/mL)

What organelle is found in paramecia cell but not plant cells

An element is stable with 8 electrons in its

Observe the reaction between N2 and H2 to make NH3. N2 (g) + H2 (g) → NH3 (g) If 2 molecules of N2 react with 3 molecules of H2, determine the number of molecules of NH3 that could form from each starting material.

How did Dalton describe the relationship between atoms and elements? Atoms are made up of combinations of elements. An element is made up of one kind of atom. Elements are made up of atoms arranged in whole-number ratios.

In what phase of matter do particles fill the entire container in which their placed? A. Liquid B. Gas C. Solid D. Frozen

A substance that permits the flow of electrons is a (n a. conductor b. insulator

If 1/8 of an original sample of krypton-74 remains unchanged after 34.5 minutes, what is the half life of krypton-74?

If a measurement is recorded as 1.2 cm what's the smallest marking on the instrument

Why do the ions in an ionic bond stay together, aka form the bond?