Answer:
Noble Gases are very stable because...
1) Noble Gases have a full octet
2) Low chemical reactivity
Explanation:
This means that is has 8 valence electrons so it won't need any more, so it is less likely to react with other substances.
Answer:
<h3>A . Alkali metals</h3>
Explanation:
The highlighted elements of the periodic table belong to the alkali metal element family. The alkali metals are recognized as a group and family of elements. These elements are metals. Sodium and potassium are examples of elements in this family.
hope this helps
Bubbles, release of gas, change in color, release of a smell, change in temperature, formation of a precipitate,
Number 13 is D. Mendeleev. He was a Russian chemist and inventor who formulated the periodic table.
If you could explain what “merkels” are, the question would be more clear.
