A mineral occurs naturally, meaning that even though there are artificial substances that might be described as mineral-like they are not minerals
<span>0.002 moles is the answer </span>
Answer:
1
only 4 is the significant figure
we take tailing zeroes as significant figures only in case of decimals
The mass number of element is 22.
The mass number is the sum of number of electrons/proton and number of neutron .
Mass number = number of proton/electron + number of neutrons
If an element with 11 neutrons, 11 protons, and 11 electrons then mass number is calculated as,
Mass number = number of proton/electron + number of neutrons
Mass number = 11 + 11 = 22
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