Which electron configuration represents an

excited state for a potassium atom?

(1) 2-8-7-1 (3) 2-8-8-1

(2) 2-8-7-2 (4) 2-8-8-2

What is used to measure the distance of nearby stars?

What type of bonding would be seen between these two atoms?

2 characteristics and 2 differences for spiral and elliptical galaxies

1 Which best defines concentration? A ratio that describes the amount of solute divided by the amount of solvent or solution B ratio that describes the amount of solvent or solution divided by the amount of solute C ratio that describes the mass of

C5H12 + 8O2 10CO2 + 6H2O What is the mole ratio of oxygen to pentane? 1:6 6:8 8:1 10:8

When all of the bulbs in the parallel circuit were first lit, did they all illuminate equally?

1. Electronegativity is the ... a. amount of energy required to remove the most loosely bound electron from an atom. b. tendency of an atom to lose an electron to another atom. c.

What can the particles of a liquid do that the particles of a solid can't do?

What is the molarity of a solution prepared by dissolving 10.0g of kno3 in 250 ml of solution

What do nucleus act as