Answer:
When we say "chlorine wants to gain one electron", we speak of the radical atom. Chlorine as a free radical, Cl⋅ , is the chlorine atom that we say has 7 valence electrons and wants its 8th to form an octet. So, Cl⋅ , chlorine radical, is less stable, and Cl− , chlorine ion, is more stable
0.02 g of calcium carbonate (CaCO₃)
Explanation:
To solve the question we use the Avogadro's number using the following reasoning:
if 1 moles of calcium carbonate contains 6.022 × 10²³ units of calcium carbonate
then X moles of calcium carbonate contains 12.044 × 10²³ units of calcium carbonate
X = (1 × 12.044 × 10²³) / 6.022 × 10²³ = 2 moles of calcium carbonate
mass = number of moles × molecular weight
mass of calcium carbonate (CaCO₃) = 2 / 100 = 0.02 g
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Avogadro's number
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Answer:
Isotopes of an element share the same number of protons but have different numbers of neutrons. Let's use carbon as an example. There are three isotopes of carbon found in nature – carbon-12, carbon-13, and carbon-14. All three have six protons, but their neutron numbers - 6, 7, and 8, respectively - all differ.
Explanation:
<span>
Melatonin is a powerful antioxidant and free radical scavenger that helps 'cool down' excess inflammation.
In fact, melatonin is so integral to the health of your immune system
that a lack of it causes your thymus gland, a key component of your
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Because melatonin is a strong antioxidant and is able to cross the
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In one study, artificially aged mice treated with melatonin had reduced
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In another study, researchers revealed that combining daily exercise
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against brain deterioration in mice with Alzheimer's disease-associated
mutations.3 Improvements in behavior, learning and memory were noted.
Melatonin's immediate precursor is the neurotransmitter serotonin,
which is a major player in regulating and giving a lift to your mood.
And, like serotonin, melatonin plays important roles in your physical
and mental health. Studies have shown that insufficient melatonin
production can set you up for:</span>
