The isotopes are elements with the same number of protons but different number of neutrons.
Boron atomic number is 5. That is the number of protons.
The natural occurring isotopes of boron contain 5 or 6 neutrons. Other, non stable isotopes, contain from 1 to 16 neutrons.
Answer:
D. Element
Explanation:
Fe is an element. It isn't more than one element chemically combined (compound), it isn't a charged particle (ion), and it isn't the smallest possible unit of multiple atoms combined together (molecule).
Answer:
i think it is a, b, or c but idk
Explanation:
1 foot = 30.48 cm
3.5 ft * 30.48 cm = 106.68 cm
Answer = 106.68 cm
Hope it helps :)
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At STP, 1 mol = 22.4
1 mol = 6.022 X 10^ 23
so your answer is right it is B 6.022 X 10^ 23