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For the representative elements (main group elements), atomic radius generally decreases from left to right across a period.

Example:

B and Fl: Fl has the smaller atomic radius

Li and Be: Be has the smaller atomic radius

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Related Questions

What elements would have the largest atomic radii sulfur oxygen selenium tellurium?

This element is tellurium with a covalent atomic radius of 140 pm.


Which element in each pair has atoms with a larger atomic mass?

Carbon vs. Oxygen: Oxygen has atoms with a larger atomic mass. Sodium vs. Magnesium: Magnesium has atoms with a larger atomic mass. Phosphorus vs. Sulfur: Sulfur has atoms with a larger atomic mass.


In what group is selenium in the periodic table?

Selenium (Se) is in oxygen family (group 16 or VIA) and in 4th period.


What is the composition and structure of selenium?

Selenium is a nonmetal element that belongs to the oxygen group of the periodic table. Its atomic number is 34, and it has multiple allotropes with different physical and chemical properties. Selenium exists in various forms, including elemental selenium, selenide ions, selenite ions, and selenate ions.


Which atoms are relatively larger than oxygen atoms?

It is not hydrogen so it must be nitrogen and bromine since it has a higher atomic radius.


What is the atomic number of the element oxygen?

Oxygen is a non metal element with atomic number of 8.


Which element has an atomic mass of 16.00?

the element that has an atomic mass of 16.00 is sulfer.


What is the atomic weight of the element oxygen?

The atomic mass of Oxygen is 15.9994.


What element is less dense selenium or oxygen?

Oxygen is less dense than selenium. Oxygen has a density of about 1.43 grams per cubic centimeter, while selenium has a density of about 4.81 grams per cubic centimeter.


What element has larger atomic radius than rubidium?

Cesium has a larger atomic radius than rubidium. This is because as you move down a group in the periodic table, the atomic radius generally increases due to the addition of more energy levels and electrons.


What element has an atomic number of eight?

Oxygen is a gas element. atomic number of it is 8.


If the atomic mass of oxygen?

Oxygen is a metal element. Atomic mass of it is 16.

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