Molar mass of helium is 4.00<span> g/mol.</span>
Mole (mol): The number of particles (atoms or molecules) in a.
sample of element or compound with a mass in grams equal to the.
<span>atomic (or molecular) weight.</span>
Answer:
electrons
Explanation:
The photoelectric effect occurs when electrons are emitted from metal when the metal is struck by light of certain frequencies.
Some of the applications of this effect include photomultipliers (which are a key component in spectroscopy instruments) and night vision devices.
From the group I A of the periodic table of the element can the chemist infer the element.
