Ca-40 makes up 96.941% with a mass of 39.96259 amu. Assume that there is only 1 other isotope; Ca-42 that makes up the remainder of the % and has a mass of 41.959. Calculate the atomic mass of the element Calcium (this may not match periodictable)

Who discovered the nucleus?

How many particles are in 3.0 mol of aluminum?

What is the molar mass?

Who said that electrons orbit around the nucleus in circular patterns?

What determines the stability of a nucleus?

How many neutrons does the Ca-42 isotope have?

How many protons does the isotope O-16

The atomic number is equal to

How did Rutherford conclude that there was a dense, positively charged nucleus?

How many much Nitrogen in grams is 93.41 mol of N?

How many electrons are in the isotope Li-7

How do you solve for % abundance when given 2 isotopes?

alpha particles are______

How many atoms of Lithium are in 9.20 g?

Convert 1.2x10^-4 mol Al to mass

Which subatomic particles have mass?

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