Which group of the periodic table contains elements that exist as diatomic molecules?

Answer 1

Ah, diatomic molecules are like best friends that always stick together! Elements in Group 17, also known as the halogens, are the ones that exist as diatomic molecules in their natural state. They form pairs, like H2, Cl2, and Br2, creating beautiful bonds that make them feel cozy and complete. Just like how we all need a friend to feel whole, these elements find comfort in each other's presence.

Answer 2

The group of elements in the Periodic Table that exist as diatomic molecules at room temperature and pressure is Group 17 or the halogens. These elements include fluorine (F2), chlorine (Cl2), bromine (Br2), iodine (I2), and astatine (At2).

Answer 3

The group of elements in the periodic table that exist as diatomic molecules is Group 17, also known as the halogens. This group includes elements such as fluorine (F2), chlorine (Cl2), bromine (Br2), iodine (I2), and astatine (At2). These elements exist as diatomic molecules because they are highly reactive and form stable molecules by sharing electrons with another atom of the same element.

Answer 4

There is a firm IUPAC convention about the numbering of the groups in the periodic table. There does not appear to be one about numbering the periods. Sometimes the first row, containing only H and He is regarded as period 1, or sometimes as period Zero. I will presume that your question was using the first numbering, and frame an answer with respect to elements Na --> Ar

Most of the lighter elements in the periodic table will form X2 gases. The ones that will not are

(i) Those that have an exactly filled subshell in the electron structure of their atom,

and

(ii) Those that do not have significant vapour pressure below temperatures where molecules cannot exist, and all matter is monatomic.

Na & Cl will form vapours of Na2 and Cl2 respectively.

Al & Si do not evaporate until very high temperatures, but low enough that some diatomic molecules can be found in what are largely monatomic vapours.

P & S form vapours of P4 and S8 respectively at low temperatures around their respective boiling points, but in each of these cases there is a higher temperature range where P2 or S2 molecules can be observed.

Mg and Ar do not form diatomic molecules in the gas (or any other) phase.

Answer 5

Iodine, Bromine, Chlorine, Fluorine, Oxygen, Nitrogen, and Hydrogen are all diatomic elements. You can remember this as I bring clay for our new house because the abbreviations of the elements are I Br Cl F O N H

Answer 6

Group 7 (sometimes called group 17) the halogens all form diatomic molecules. Under normal conditions bromine is liquid although it fumes. Iodine is shiny solid that sublimes , i.e doesn' t liquify when heated.. Not much is known about astatine but it is believed to be similar to iodine.

So on a simple count the halogens win with two diatomic gases under normal conditions.

However other groups have elements that form diatomic molcules eg Group 6 (group 16) has Oxygen, and group 5 (group 15) has nitrogen, group 1 has hydrogen.

All of the gaseous elements are diatomic with the exception of the Noble Gases.

Answer 7

The element in period three that is diatomic is Chlorine (Cl) . This is because it has seven electrons in its outer shell, and another Chlorine atom can fill that easily.

Answer 8

The following elements form diatomic molecules

H, N, O, F,Cl, Br, I

Answer 9

There are five diatomic elements that are gases: hydrogen (H2), nitrogen (N2), oxygen (O2), fluorine (F2), and chlorine (Cl2).

Answer 10

Period Two - Nitrogen, Oxygen and Fluorine.