Use the periodic table to identify the number of core electrons and the number of valence electrons in each case below. Potassium (K) : 1s22s22p63s23p64s1 core electrons valence electrons

What affect the amount of gravity between two objects? A. Density and mass B. Distance and weight C. Mass and weight D. Mass and distance between the objects.

If two electrons in the same atom have the same four quantum numbers, then they must have the same energy. a. trueb. falsec. They cannot both have the same four quantum numbers.

If a drag racer wins the final round of her race by going an average speed of 92.5 m/s in 4.5 seconds, what distance did she cover

Is a paper clip a conducted or insulator

A railroad freight car of mass 3.34 * 104 kg collides with a stationary caboose car. They couple together, and 19.0% of the initial kinetic energy is transferred to thermal energy, sound, vibrations, and so on. Find the mass of the caboose.

If the car went 30 km west in 25 min. and then 40 km east in 35 min., what would be its total displacement?

Which of the following is not the name of a space station that was in orbit around Earth?

Relationship between acceleration and free fall

A SI unit used to measure force, equal to less than one-quarter of a pound, is the what

What basic form of energy is present in blowing wind?