For Al, its atomic number is 13 and its mass number is 27. How many neutrons does it have?

A. 13

B. 14

C. 26

D. 27

E. 40

Glassy and metallic are terms that describe what mineral property? A. luster B. color C. shape D. hardness

The wavelength of a beam of light is 1.20 cm. what is the energy of one photon of this radiation?

How many neutrons does element x have if its atomic number is 48 and its mass number is 154?

If a car rolls 2 meters to the right then rolls back 1 m to the left what is the total distance rolled cart

When you blow some air above a paper strip, the paper, rises. This is because 1.) the air above the paper moves faster and the pressure is lower 2.) the air above moves faster and the pressure is higher 3.

Will make Brainlest! <3 Metals are considered to be good conductors of heat. How do the specific heat values indicate this?

Which example identifies a change in motion that produces acceleration? choices are: 1. a speed skater moving at a constant speed on a straight track 2. a ball moving at a constant speed around a circular track 3.

Which of the following diagnostic procedures uses ultrasound?

Why is it easier to read black text on a white background than to read green text of any light color?

If object A has more mass than object B, does object A contain more matter? Explain.