Table of Contents
What has the most number of elements?
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….
| Oganesson | |
|---|---|
| Mass number | [294] |
| Oganesson in the periodic table |
Which group has the largest number of elements?
Group 1
Therefore our answer is Group 1 has the maximum number of elements and therefore the largest or longest group in the periodic table. Let’s learn a little bit about the Group 1 elements. They are called the alkali metals because on reaction with the water they form alkali metals.
What compound has the greatest number of elements?
Helium has the most number of mol out of all the options and will thus have the highest number of atoms.
Where is the largest element on the periodic table?
francium
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.
How many elements are there in the third group?
Although some controversy exists regarding the composition and placement of this group, it is generally agreed among those who study the matter that this group contains the four elements scandium (Sc), yttrium (Y), lutetium (Lu), and lawrencium (Lr).
Which element has largest atom?
Cesium (Cs), tucked in the lower left hand corner of the table, has the largest known atoms. The atomic radius of Cs is given variously as 273.1 pm [1], 265 pm [2], 265.5 pm [3] or 260 pm [4].
What is the largest compound?
PG5
MEET PG5, the largest stable synthetic molecule ever made. With a diameter of 10 nanometres and a mass equal to 200 million hydrogen atoms, this tree-like “macromolecule” paves the way for sophisticated structures capable of storing drugs within their folds, or bonding to a wide variety of different substances.
Which element has the highest atomic number?
Uranium (atomic number=92) is the element with the highest atomic number found in significant quantities on earth or elsewhere. The elements astatine (atomic number=85) and francium (atomic number=87), along with all the other known elements (up to atomic number 109) were discovered when first made artificially;
Which elements have the highest atomic radius?
The element that has the largest atomic radius is cesium. It has an atomic radius of 298 pm, or picometers.The atomic number of cesium is 55.
What is the greatest element?
In mathematics, especially in order theory, the greatest element of a subset S of a partially ordered set (poset) is an element of S that is greater than every other element of S. The term least element is defined dually, that is, it is an element of S that is smaller than every other element of S.
What is the largest atom on the periodic table?
Francium (Fr) can be the largest. As atomic size increase down the table and from Right to left also atomic size increases.