Quick Answer: Which Element Has A Smaller Atomic Radius Lithium Or Fluorine Why?

Does lithium have a smaller atomic radius?

That is why lithium has a larger atomic radius than beryllium.

In fact, atomic radius decreases as you move from left top right across a period..

Which has the larger radius F or F?

F has a larger radius than F− because an additional electron causes greater repulsion in F.

Does fluorine have a larger atomic radius?

4. Explain, in terms of nuclear charge and number of principle energy levels, why Fluorine has a SMALLER atomic radius than lithium? Fluorine has a smaller radius than lithium because of the greater positive charge of the nucleus, pulling electrons and the electron shells in closer.

Which atom is bigger fluorine or oxygen?

Fluorine is smaller than oxygen because as we move across a period the size of the elements decreases.

What is the atomic radius of lithium?

182 pmLithium/Van der Waals radius

What element has the largest atomic radius?

franciumAtomic radii vary in a predictable way across the periodic table. As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and francium is the largest.

Which is the largest size I Cl Br F?

Br has larger atomic size than Cl because the atomic size increases from top to bottom in a group. From top to bottom in a group, the number of shells increases. So, the atomic size increases.

Which is smaller in size?

Answer. Fluorine ( F ) is smaller in size because as the nuclear charge ( force of attraction between protons and electrons ) increases across a period ,consequently the atomic size decreases . Hope it helps !!!

Why is O 2 bigger than F?

Explanation: From top to bottom of the periodic table ions will increase in radii. However, now left to right the radius is more of a function of the number of electrons. … Similarly, O2- will be larger than F- as both have 10 electrons but Z=8 for oxygen and Z=9 for fluorine.

Which is larger in radius K+ or K?

These are electrons with “highest energy level”. When at neutral, the potassium ion in the form of K has an electronic configuration of: … The K+ ion has its outermost electrons on the third energy level now and is size is smaller than that of K ion. Hence, K is larger than K+.

Which is smaller in size Li or F?

Answer. Fluorine is in the same period as lithium but to the right of lithium so it’s smaller which means Li is larger in size than F.

Is Cl or Br bigger?

As Br is smaller than Cl; therefore, Br- have a smaller ionization energy than Cl-. In short, since the outermost electron in bromine is farther from the nucleus than the outermost electron in chloride, it takes less energy to remove the outermost electron in bromide.

Does fluorine have the smallest atomic radius?

The smallest atoms are going to be located toward the upper right of the periodic table. Of our given answer choices, fluorine is the closest to the upper right, and thus has the smallest radius.

Does oxygen have a larger atomic radius than fluorine?

Atomic radii of oxygen is 48 pm. In moving from left to right across a period, the atomic radius decreases as the effective nuclear charge increases. Hence, fluorine has smaller atomic radius than oxygen.

Which has the largest size 1 BR 2 i 3 i+ 4 I?

Br is placed above I in periodic table. Thus Br is smaller than I+,I,I−. Among I+,I,I− the lowest effective nuclear charge is experienced by I−. Thus it has largest size.

Why is Li+ smaller than Li?

A cation has less electron than the neutral form of the element. Remember that the atomic radius is dependent upon the number of electrons (i.e. high number of electrons means larger radius). Li+ has 1 electron less than Li. Therefore, Li+ is smaller than Li.

Which is larger F 1 or F and why?

Cations have less electrons than anions. … F-1 is larger than F because F has a greater positive charge and electrons repel the nucleus.

Why does Li have a larger atomic radius than F?

In your case, lithium has an atomic number equal to 3 and fluorine an atomic number equal to 9 . So fluorine has more protons in its nucleus. … As a result, the atomic size of fluorine will be smaller than that of lithium, or, in other words, lithium will have larger atomic radius than fluorine.

Why does lithium have a smaller atomic radius than potassium?

This is because as the number of electrons increases, the attractive forces on each electron becomes stronger. As the attractive forces become stronger, the electrons are drawn closer to the nucleus, and thus the atom is smaller.

Which one has the largest size br i minus CL?

Why iodine has a largest size among ,Br,I,I-,Cl.

Which is smaller in size Cl or Ar?

Explanation: And for NEUTRAL atoms, reasonably, atomic size decreases across a Period, from left to right as we face the Table, and INCREASES down a Group. … With respect to the parent atoms, potassium would be larger than argon, the which would be smaller than chlorine.