According to the periodic table, lithium and nitrogen have the same number of

a. protons.

b. electrons.

c. electron energy levels.

d. protons plus neutrons.

What tool could be used to measure pressure? what units would this measure in?

If an element has 43 electrons, 56 neutrons, and 43 protons, what is its approximate atomic mass?

When an aluminum cube of edge 0.100 m and temperature T0 = 5.00°C is submerged in a bucket of water, the level of the water rises right up to the rim of the bucket. What would happen if the aluminum cube were first warmed to 85.

Select all that apply. A beta particle: is electromagnetic energy is an electron has zero charge has zero mass has a + 2 charge has a - 1 charge

How does density differ from volume

Of the total base sequence in human DNA, what percentage codes for proteins? A) Nearly 50 percent B) About 5 percent C) About 90 percent D) 100 percent

When an atom of phosphorus becomes a phosphide ion (P3-), the radius decreases, increases or stays the same?

Determine the percentage composition (by mass) of oxygen in NH4NO3.

Why does aluminum have a higher specific heat than gold?

The frequency of a given region of the electromagnetic spectrum is more than 3 x 1019 HZ. Note that the speed of light is 2.998 x 108 m/s. Which waves are found in this region? A. gamma rays B. visible light C. microwaves D. radio waves E. x-rays