Where are valence electrons located in an atom?

A. In all energy levels

B. In the outermost energy level

C. In the lowest energy level

D. In the nucleus

Does the mass number of an atom change when the atom forms a chemical bond?

Which sentence best describes the relationship between chlorophyll and the chloroplast? A. Chlorophyll is a chemical found in a chloroplast. B. Chloroplast is a chemical found in a chlorophyll. C.

How many atoms are in sodium sulfide?

Why is caffeine more soluble in dichloromethane compared to water?

A milkshake is sipped through a straw at 0.071 atm. The straw contains 5.0mL of liquid. How much liquid is consumed at 0.092atm?

What jobs involve chesmistry

Think about a neutral magnesium atom. Then think of a magnesium ion with a 2+charge. How are these two alike? How are they different? Be sure to use the terms proton, neutron, and electron in your answer.

What subatomic particle is specifically responsible for combining the atoms together to form a new substance?

A chemist reported that 100 gallons of a gas were available in a laboratory. Which property of the gas did the chemist report?

Is the water density higher than the aluminum density