Why do electrons enter the 4s orbital before entering the 3d orbital?

One part phosphorus nine Parts potassium make up this compound that was recently isolated from dog urine

Which of the following describes a characteristic of water that makes it cohesive in nature? A: It is a non-polar molecule with weak hydrogen boding B: It has a linear molecular structure with H-O-H arranged in a straight line.

Calculate the volume of 2.5*10-4 moles of h2

How do atoms become ions?

How many moles of Zn are contained in 12.5 grams of Zn?

Why does an apple fall toward the earth, instead of the earth moving toward the apple?

If the moles and temperature of a gas are held constant, the pressure of a gas doubles when: Volume is halved Volume is quadrupled Volume is doubled Volume is also held constant

The life function of transport in an organism directly involves those activities used to 1. absorb and distribute materials 2. obtain and hydrolyze materials 3. release energy from food 4. produce cellular waste product

What is the orbital diagram for phosphorus

The atoms of gaseous helium are