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potassium 40, Argon 40, Calcium 40.
the answer is 21. because you do 40-19
no
They have the same mass.
They have the same mass.
kbr
I suppose that this compound is potassium carbonate, K2CO3.
The answer will depend on what the solvent is.
The first decay products of potassium-40 are argon-40 and calcium-40.
By subtracting 19 (atomic number of Potassium) from 40. You should come out with 21, which is the number of neutrons in potassium-40
In late 2008, bulk potassium was about $ 40 USD per pound.The price for the salt "potassium chloride" was only about 1% of that price, but sharply higher in 2009 (around $ 10 USD per pound in bulk).
The half life of potassium 40 is 1.3 billion years.
The half life of potassium 40 is 1.3 billion years.
potassium 40, Argon 40, Calcium 40.
the answer is 21. because you do 40-19
I cannot imagine rounding potassium to 40. The atomic number is 19, and the atomic weight is 39.09 ■
It is about potassium. It got 40 amus.