4 years ago

All helium atoms have 2 protons. what is the atomic number of helium?

1 answer:

7 0

Answer:

All helium atoms have two protons, and no other elements have atoms with two protons. In the case of helium, the atomic number is 2. The atomic number of an element is usually written in front of and slightly below the element's symbol, like in the Figure below for helium.

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What is the mass of 2.47 moles of fluorine (<br> f. atoms? 0.130 g 7.69 g 46.9 g my answer 282 g

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mass of Fluorine= moles x molar mass

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