In general, as you move from right to left across a period, the number of valence electrons

How many protons does the biggest element of the periodic table have?

What is the mass (in grams) of 1.25 mole of sodium metals? a. 1.53 x 10^25 g b. 40.1 g c. 28. 7 g d. 7.53 x 10^23 g

How do you know if a equation is balanced or unbalanced

Which is a physical property of milk? milk has a ph ranging from 6.4 to 6.8. milk spoils when left unrefrigerated over several days milk boils at about 212 F (100 c) milk curdles when mixed with vinegar

What the name of th compound Mg (NO3) 2

How many grams are in 2.30 x 10^24 atoms in silver

Why must model sometimes be changed

Identify the properties of magma that causes it to be forced upward towards earth surfaces

An atom has a mass number of 53 and an atomic number of 26. How many neutrons does it have? Include a formula that explains your calculation.

To determine the molar mass of a protein, a 0.891 g sample of it is added to 5.00 g of water and the osmotic pressure is measured as 0.179 atm at 22.0°C, what is the molar mas of the protein? (The protein is non-ionizing)