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Answer: 3 moles Na
Explanation: To find the number of moles of Na, divide the number of atoms of Na with the Avogadro's Number.
1.806x10²⁴ atoms Na x 1 mole Na / 6.022x10²³ atoms Na
= 2.99 or 3 moles Na
The elements are arranged by their atomic number but are also grouped by what type of element they are.
For example, metals, non metals, metalloids, and noble gasses will be grouped with elements that match them.
Hope this makes sense!
Answer:
A. Electrons from escaping from the tube containing the triode.
:)
Explanation: