Radius of the positive ion will be smaller than the radius of its parent atom.
<h3>Explanation</h3>
Sodium Na has atomic number 11. A neutral Na atom has 11 electrons. It has
- 2 electrons in the first main shell,
- 8 electrons in the second main shell, and
- 1 electron in the third main shell.
Na tends to lose one electron. It would form an Na⁺ ion. The ion is positive and has ten electrons. It has
- 2 electrons in the first main shell, and
- 8 electrons in the second main shell.
Three of the main shells of Na contain electrons. Only two main shells contain electrons in Na⁺. The energy of the second main shell is higher than the first. It is more distant from the nucleus than the first electron shell. Similarly, the third main shell is further away from the nucleus than the second.
The outermost shell in Na is the third main shell. The outermost shell in Na⁺ is the second main shell. As a result, the outermost electrons in Na are further away from the nucleus that electrons in Na⁺. As a result, the radius of Na appears to be larger than that of Na⁺.
When an atom loses electrons to form a positive cation, it tends to lose all electron in its outermost shell (the valence shell). That will give the ion an octet, which is more stable than having one or two electrons left in the valence shell. The rule on Na shall still apply. The positive ion will have one less main shell; its radius shall be smaller than that of the parent atom.
The correct option is A.
The law of definite proportion states that a given chemical compound always contains its component elements in fixed ratio irrespective of the source they are obtain from.
For instance, water is made up of two atoms of hydrogen and one atom of oxygen. Water can not be formed in any other way. Combining the oxygen and the hydrogen in another ratio will give us another thing not water.
Answer:
The chemical formula of nitric acid is HNO3 and it is made up of one hydrogen atom, one nitrogen atom, and three oxygen atoms.
Explanation:
hope this helps!!
KH2O? Maybe that will work?
Yellow because Pangea all the continents were together
