Which element in Period 2 has the largest atomic mass?

1 Answer. The element in Period 2 with most mass is clearly the element with the highest atomic number, Z , and that is Ne , Z=10 , 21.08⋅g⋅mol−1 .

Which element in Period 2 has the most mass?

The element neon, in period 2, has the most mass.

Which element in Period 2 has the largest atomic radius?

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 element has the largest atomic mass?

Oganesson has the highest atomic number and highest atomic mass of all known elements. The radioactive oganesson atom is very unstable, and since 2005, only five (possibly six) atoms of the isotope oganesson-294 have been detected.

Which element in Period 2 has less mass?

The second Period begins with lithium, whose atomic mass is 6.94 g⋅mol−1 . it ends with neon, whose atomic mass is 20.18 g⋅mol−1 .

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 is period 2 on the periodic table?

Period 2 is the first period in the periodic table from which periodic trends can be drawn. … All period 2 elements completely obey the Madelung rule; in period 2, lithium and beryllium fill the 2s subshell, and boron, carbon, nitrogen, oxygen, fluorine, and neon fill the 2p subshell.

What elements have the smallest atomic radius?

Explanation: Helium has the smallest atomic radius.

What elements have the largest atomic radius?

Francium has the largest, Helium has the lowest. Atomic radius increases as you go to the left and downward due to the attraction of electrons and the nucleus in an atom.

How do you find atomic radius?

The radius of an atom can only be found by measuring the distance between the nuclei of two touching atoms, and then halving that distance. As you can see from the diagrams, the same atom could be found to have a different radius depending on what was around it. The left hand diagram shows bonded atoms.

Which is the lightest element in the world?

Hydrogen is the lightest element and exhibits the simplest atomic structure. In addition, it is the most abundant element in the universe and can form bonds to nearly every element, such as s- and p-block elements.

Which metal has lowest atomic mass?

Sissis is the metalloid with the greatest atomic mass. Ernst is the metalloid with the lowest atomic mass.

What are the six elements of life?

The six most common elements of life on Earth (including more than 97% of the mass of a human body) are carbon, hydrogen, nitrogen, oxygen, sulphur and phosphorus.

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.

Which is an F block element?

The f block elements are the lanthanides and actinides and are called the inner transition elements because of their placement in the periodic table due to their electron configurations. The f orbitals of the electron shell are filled with “n-2.” There is a maximum of fourteen electrons that can occupy the f orbitals.

What is the period for nitrogen?