This is how fluorine appears in the periodic table. 9 F Flourine 19.00 What information does "9" give about an atom of fluorine? the atomic number

the atomic mass

the number of protons

the number of electrons

the number of neutrons

Check all that apply.

An ion from a given element has 82 protons and 80 electrons. what is the charge on the ion? what is the name of the element? what is the symbol for the ion?

Why can we sometimes hear noises in the stomach during digestion?

Complete the chart. atomic number: 10. 1s 2s 2p 3s 3p 4s 3d 4p 5s

Properties of noble gases

How many moles of cacl2 are in 250 ml of a 3.0 m of cacl2 solution?

All the following are characteristic properties of phosphorus. Which one is a chemical property? (a) When exposed to air, white phos - phorus will burn spontaneously, but red phosphorus will not. (b) Red phosphorus and white phos - phorus are solids.

What are the monomers of proteins called

What type of fermentation occurs in yeast?

How much energy is required to vaporize 0.5kg of water?

Can u give me uses of sodium