Which element has the largest size in the second period?

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

Which element in the 2nd period has the greatest atomic radius?

The element in the second period that has the largest atomic radius is the Lithium (Li). The answer is letter D. As you go down the periodic table, the atomic radius increases and as you go across the periodic table, the atomic radius decreases.

Which of the following element of second period has second highest radius?

Properties of Elements in Period 2 of the Periodic Table

Which elements are in the 2nd period?

• A period 2 element is one of the chemical elements in the second row (or period) of the periodic table of the chemical elements. …
• The second period contains the elements lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, and neon.

What is the smallest element in period 2?

It’s F fluorine. It has the smallest diameter in the second period.

Which period has the smallest atomic radius?

Explanation: Helium has the smallest atomic radius. This is due to trends in the periodic table, and the effective nuclear charge that holds the valence electrons close to the nucleus. Atomic radius decreases as you move across a period from left to right and decreases as you move up a group from bottom to top.

What has the largest atomic radius?

Atomic 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 of the group 13 elements is the largest?

While, aluminum, indium, and thallium have typical metal properties, gallium has the largest liquid range of any element. Boron exists as a molecular compound in the solid state, hence its high melting point.
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Physical properties.

Which element has lowest electronegativity value?

The element with the lowest electronegativity value is francium, which has an electronegativity of 0.7. This value uses the Pauling scale to measure electronegativity. The Allen scale assigns the lowest electronegativity to cesium, with a value of 0.659.

Which element has the largest electronegativity?

Electronegativity increases from bottom to top in groups, and increases from left to right across periods. Thus, fluorine is the most electronegative element, while francium is one of the least electronegative.

What is the trend in melting point for Period 2?

Trends in melting/boiling point can be complicated because of significant differences in the structure of the element. The melting points and boiling points tend to peak in the middle of Periods 2 and 3 (Groups 3/13 and 4/14) and the lowest values at the end of the period – the Noble Gases.

What number increases from 3/10 to Period 2?

In the periodic table, atomic number increases from 3 to 10 in period 2. Explanation: Atomic numnber is the total number of protons present in an atom. And, when we move across a period then there occurs an increase in atomic number of the elements.

What element is in Period 2 Group 7?

The Group 7 elements are called the halogens. They are placed in the vertical column, second from the right, in the periodic table . Chlorine, bromine and iodine are the three common Group 7 elements.
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Properties and uses of the halogens.

What is the lightest element on earth?

Hydrogen is the lightest element. Dihydrogen, H2, is a colorless, odorless, tasteless gas.

What is the smallest unit element?

Atoms. An atom is the smallest unit of a pure substance or element that can exist and still retain the properties of the original substance or element.

What is the smallest particle?

An atom is the smallest particle of an element, having the same chemical properties as the bulk element. The first accurate theory explaining the nature of matter was Dalton’s Atomic Theory: 1. All matter is composed of atoms, and atoms are indivisible and indestructible.