In the late 1800s, experiments using cathode ray tubes led to the discovery of the

(1) electron

3. positron

(2) neutron

4. proton

Which of the following correctly compares the radii of Na and Na+? A. Na has a smaller radius than Na + because Na has expanded its electron cloud. B. Na has a larger radius than Na + because Na has lost its outermost energy shell. C.

Why are atoms considered the smallest particles of an element?

GasesToxic fumesParticulates are solid or liquid particles that settle after being dispersed in a gas.

Describe the formation of an aqueous KI solution when KI dissolves in water

How are elements usually found?

How many grams of KCl are produced when 60 grams of K are reacted?

Whats a solution! people

How do compounds affect an atom's stability

You need to make 10 mL of 2 mg/ml solution of protein and you have 25 mg/mL solution. How much protein solution and water do you need to mix in order to make the required solution?

The definition of volume is? a) width*height b) the space occupied by mass c) the space occupied by a liquid d) the mass of liquid required to fill a container