Table of Contents
- 1 Why does phosphorus have a smaller atomic radius than sodium?
- 2 Why is one atom smaller than another?
- 3 Which is the best explanation for why the radius of a phosphorus atom is smaller than that of a magnesium atom?
- 4 Is phosphorus ion bigger than phosphorus?
- 5 Why is sodium atom bigger than sodium ion?
- 6 Why is one atom bigger than another?
- 7 Do you expect an ion of phosphorus phosphide to be larger or smaller than a neutral atom of phosphorus?
- 8 Why does phosphorus have a larger atomic radius than sulfur?
Why does phosphorus have a smaller atomic radius than sodium?
Along a period, atomic radius decreases as the nuclear force of attraction increases. Or also, the sodium’s atomic number is 11 whereas phosphorus’s atomic number is 15. Thus, the nuclear force of attraction will be more in case of phosphorus. Hence, sodium will have a larger radius than phosphorus.
Why is one atom smaller than another?
Periodic Trends of Atomic Radius An atom gets larger as the number of electronic shells increase; therefore the radius of atoms increases as you go down a certain group in the periodic table of elements. In general, the size of an atom will decrease as you move from left to the right of a certain period.
Is phosphorus the smallest atom?
Answer: In general, atomic radius decreases going across a period of the Periodic Table. Sodium (Na), magnesium (Mg), silicon (Si) and phosphorus (P) all belong to the third period. So, phosphorus, symbol P, has the smallest atomic radius.
Which is the best explanation for why the radius of a phosphorus atom is smaller than that of a magnesium atom?
Phosphorus has a larger atomic radius due to fewer electron levels.
Is phosphorus ion bigger than phosphorus?
Phosphorus ion has greater size compared with phosphorus atom because when an electron is added to an atom forming anion, the added electron repel other electron resulting an increase in size of the ion.
Which elements has a smaller atomic radius than phosphorus?
Atomic radius
| Element | Symbol | Atomic radius /nm |
|---|---|---|
| aluminium | Al | 0.130 |
| silicon | Si | 0.118 |
| phosphorus | P | 0.110 |
| sulfur | S | 0.102 |
Why is sodium atom bigger than sodium ion?
Na+ is smaller than Na atom because: Sodium atoms and sodium ions have the same number of protons. Each one has 11 protons. The sodium atom has 11 electrons. Sodium-ion has 10 electrons as sodium atom loses one electron to form sodium ion.
Why is one atom bigger than another?
As you go down the periodic table, usually atoms get bigger because n gets bigger (there are electrons in higher shells). When you remove electrons, making cations, there are less electrons and less electron-electron repulsions, so the cation is smaller than the atom.
Which is the smallest atom?
Helium
Helium is the smallest atom. An electron gets added to each element from left to right and in the same shell. More the attraction, less the space.
Do you expect an ion of phosphorus phosphide to be larger or smaller than a neutral atom of phosphorus?
(iii) Phosphorus is a Group 15 element so its only ionic state is P3-. Anions of a given element have a larger radius than the neutral atom, so P3- will increase in size compared with the P atom.
Why does phosphorus have a larger atomic radius than sulfur?
Phosphorus has a larger atomic radius than Sulfur. This is due to the difference in the number of protons in the nucleus which affects the effective…
Is phosphorus atom larger than antimony atom?
The most stable ion of lithium is L A phosphorus atom is larger than an antimony atom. The radius of a sodium atom is larger than that of a sodium cation.