What are the element of group 1 and 17?

The elements in group 1 are known as the alkali metals; those in group 2 are the alkaline earth metals; those in 15 are the pnictogens; those in 16 are the chalcogens; those in 17 are the halogens; and those in 18 are the noble gases.

Does group 1 react with Group 17?

Properties of Halogens Elements such as fluorine, chlorine, bromine, iodine, and astatine belong to Group 17, the halogen group. Halogens therefore react most vigorously with Group 1 and Group 2 metals of all main group elements.

Why do group 1 elements form compounds with elements in Group 17?

Hydrogen is a very reactive gas, and the alkali metals are even more reactive. Because alkali metals are so reactive, they are found in nature only in combination with other elements. They often combine with group 17 elements, which are very “eager” to gain an electron.

How are the elements in Group 17 similar?

These five toxic, non-metallic elements make up Group 17 of the periodic table and consist of: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). Although astatine is radioactive and only has short-lived isotopes, it behaves similar to iodine and is often included in the halogen group.

What is the difference between group 1 and 17?

As alkali metals, the Group I elements are non-molecular solids (almost all of them are!). On the other hand, the Group 17 elements are molecular, with discrete molecular boundaries as gases, liquids, or solids. Metals are reducing, and non-metals are oxidizing, and hence the alkali metals form salts with the halogens.

What group does group 1 react with?

The reaction becomes more vigorous as one moves from top to bottom in Group 1A: lithium sizzles fiercely in water, a small amount of sodium reacts even more vigorously, and even a small amount of potassium metal reacts violently and usually ignites the hydrogen gas; rubidium and cesium explode….Group 1A — The Alkali Metals.

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Which element in group 1 is the least reactive?

lithium
Reactivity of Group 1 Elements The reactivity of alkali metals increases from the top to the bottom of the group, so lithium (Li) is the least reactive alkali metal and francium (Fr) is the most reactive.

Why is hydrogen placed in Group 1 and not 17?

Hydrogen is placed above group in the periodic table because it has ns1 electron configuration like the alkali metals. Hydrogen has a much smaller electron affinity than the halogens.

What are the element of group 1 and 17? The elements in group 1 are known as the alkali metals; those in group 2 are the alkaline earth metals; those in 15 are the pnictogens; those in 16 are the chalcogens; those in 17 are the halogens; and those in 18 are the noble gases.…