The valence electrons in an atom of phosphorus

in the ground state are all found in

(1) the first shell

(2) the second shell

(3) the third shell

(4) the fourth shell

What are some types of gravity in space?

A nuclear reaction in which two light nuclei combine to form a more massive nucleus is called (1) addition (3) fusion (2) fission (4) substitution

If the o2 is collected over water at 25 c (298 k) and 724.0 mm hg total pressure, how many mols o2 will a 1.00 l sample of collected gas contain?

Why is actin important to the body

Which parameter is measured directly in a coffee-cup calorimeter? pressure heat of fusion temperature kinetic energy

If an atom has 8 valence electrons, how many electrons does it need to gain to achieve a stable electron configuration?

About how many miles on Earth are equal to one degree of latitude?

What are the allotropes of sulphur And phosphorus?

Particles are measured in

Marcus measured the masses and volumes of samples of four different substances, and he calculated their densities. The table shows Marcus's measured and calculated values. Substance Mass (g) Volume (cm3) Density (g/cm3) aluminum 5.7 2.1 2.