What Element In The Second Period Has The Largest?

What element in the second period has the largest?

Lithium

is the first element of the second period and atomic size decreases across the period. Therefore, Li has the largest size.

Which group has largest atomic radius?

The radii generally decrease along each period of the table, from left to right; and increase down each group.So sodium of

group I

has the largest atomic radius.

Which Period 2 element has the largest atomic radius from carbon to fluorine?

Identify the Period 2 element, from carbon to fluorine, that has the largest atomic radius. Explain your answer.

Carbon

because it has the smallest nuclear charge and therefore the least attraction between the protons in the nucleus and electrons.

Which element in Group 2 has the largest sized atoms Why?

Which element have the largest and smallest?

Helium is the smallest element, and Francium is the largest

.

The atomic radius increases from top to bottom in a group, and decreases from left to right across a period.

Smallest and Largest Atomic Radius

Francium

has the largest atomic size on the periodic table, and helium has the smallest atomic size.

The second period contains the elements

lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, and neon

. In a quantum mechanical description of atomic structure, this period corresponds to the filling of the second (n = 2) shell, more specifically its 2s and 2p subshells.

In the periodic table, atomic radii decrease from left to right across a row and increase from top to bottom down a column. Because of these two trends,

the largest atoms are found in the lower left corner of the periodic table

, and the smallest are found in the upper right corner (Figure 2.8. 4).

Comparing carbon (C) with an atomic number of 6 and fluorine (F) with an atomic number of 9, we can tell that, based on atomic radius trends,

a carbon atom will have a larger radius than a fluorine atom

since the three additional protons the fluorine has will pull its electrons closer to the nucleus and shrink the …

So in periods two and three, the highest melting point elements tend to be the

metal elements with the most delocalized electrons

. For the elements given, the metal element that has the most delocalized electrons is beryllium. So the correct answer is (B). Beryllium is the correct answer.

Answer and Explanation: From the given list, the particles, molecules, and gas range from smallest to largest in the following order:

electron < proton < atom <

… See full answer below.

In case you forgot your high school chemistry, here’s a quick refresher: An element’s atomic number is the number of protons it contains in its nucleus. The heaviest element in nature is

uranium

, which has 92 protons.

The order is Be

< C < B < N < F < O < Ne < Li

.

Therefore, elements of the second period are called

bridge elements

which show option C as the correct choice.

We take “last element” to mean the element with the highest atomic number. To date, the highest atomic number element to be discovered or synthesized is

oganesson (symbol Og), with atomic number 118

.