What is the atomic mass that of magnesium

The two most reactive families of elements are the halogens and the alkali metals. how do they differ in their reactivities?

Which statement about atoms of elements in the same group of the periodic table is true? They share the same number of electrons and the same atomic radius size. They share similar chemical properties and the same number of valence electrons.

A cylinder has a hight of 6 meters and a diameter that is 6 times the measure of the hight using 3.14 for pi which of the following can be used to calculate the volume of the cylinder 3.14) (36m) 2 (6m) (3.14) (18m) 2 (6m) (3.14) (6m) 2 (6m) (3.

An elements atomic number is 32. How many protons would an atom of this element have?

State one medical use of radioactive isotopes

What is a precipitate? It is a liquid that forms from solution during a chemical reaction. It is a reactant that forms from solution during a chemical reaction. It is a solid that forms from solution during a chemical reaction.

The electron configuration for an atom is 1s22s22p2. How many electrons does the atom have? 4 2 6 5

When a piece of sodium carbonate reacts with dilute HCl, a gas X is produced. When gas X is passed through lime water then the solution turns milky and a white precipitate Y is formed a. Write the chemical formula of X, Y and (3) b.

Would precipitation occur when 500 mL of a 0.02M solution of AgNO3 is mixed with 500 mL of a 0.001M solution of NaCl? Show your work.

What compound is always part of an aqueous solution?