What determines the properties of elements?

Question 25 options:

the number of electrons that fill the outer shell

the total number of electrons

the number of electron shells

the number of neutrons

the average atomic mass

A value that describes how heavy an object is and is related to the force of gravity is: a. mass c. a Newton b. weight d. none of the above

In what type of wave do the particles in the medium experience forces parallel to the wave's direction?

A train moves a constant velocity of 50km/h how far will it move in 0.5h

If the moon did not have an atmosphere what would happen to it

Find the potential 1.24 cm from a proton. the coulomb constant is 8.9876 * 109 n m2 / c 2 and the elemental charge is 1.602 * 10-19 c

Which statement is true about a polarized object? A) It gains electrons and becomes negatively charged. B) It gains protons and becomes positively charged. C) The number of positive and negative charges can be the same. D) It has to be a metal.

Define the law of conservation of momentum in one sentence

A shopping cart rolls from x=19.9m to x=5.40m with an average velocity of - 0.418m/s. How much time did it take? (unit=s)

Where does the energy of a nuclear power plant come from?

When the vapor pressure of a liquid is equal to the atmospheric pressure the liquid?