Answer:
5
Explanation:
A lithium atom with an atomic number of 3 and a charge of -2 will have a total number of electrons.
The atomic number is the number of protons in an atom. For a neutral atom that has not gained or lost electrons, the atomic number is the same as the number of electrons.
neutral atom: atomic number of electrons
For neutral atom of lithium, we will have 3 electrons
Now, lithium with a charge of -2 has gained two more electrons to the original 3 this now makes it 5.
ii.
It is an anion because it is negatively charged.
Negatively charged particles are called anion.
They can form acids or ‘acid rain’ like nitric acid or sulfuric acid which can damage buildings and structures.
answer:
- drugs (a)
- fibers (b)
- paints (d)
- cosmetics (e)
- electronic components (f)
Answer:
A
Explanation:
Mass is a measure of the amount of matter in an object.
Answer:
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Explanation:
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