Which group of the periodic table has elements that are very reactive?

Which group of the periodic table has elements that are very reactive?

Group 1A — The Alkali Metals. Group 1A (or IA) of the periodic table are the alkali metals: hydrogen (H), lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). These are (except for hydrogen) soft, shiny, low-melting, highly reactive metals, which tarnish when exposed to air.

Which elements are most reactive and why?

Hydrogen is a very reactive gas, and the alkali metals are even more reactive. In fact, they are the most reactive metals and, along with the elements in group 17, are the most reactive of all elements.

Which two groups are most reactive?

The two most reactive families of elements are the halogens and the alkali metals.

What elements are extremely reactive?

The halogens, alkali metals, and alkaline earth metals are highly reactive. The most reactive element is fluorine, the first element in the halogen group. The most reactive metal is francium, the last alkali metal (and most expensive element).

Which two groups are the most reactive on the periodic table?

Is a group of highly reactive element?

Group 1 of the periodic table includes hydrogen and the alkali metals. Because they have just one valence electron, group 1 elements are very reactive. As a result, they are found in nature only in combination with other elements. Alkali metals are all solids at room temperature.

Why is Group 1 the most reactive?

Alkali metals are among the most reactive metals. This is due in part to their larger atomic radii and low ionization energies. They tend to donate their electrons in reactions and have an oxidation state of +1. All these characteristics can be attributed to these elements’ large atomic radii and weak metallic bonding.

What are the 2 most reactive groups why they are very reactive?

Group 2: Alkaline Earth Metals The alkaline Earth metals include all the elements in group 2 (see Figure below). These metals have just two valence electrons, so they are very reactive, although not quite as reactive as the alkali metals. The alkaline Earth metals make up group 2 of the periodic table.

Is Group 1 or Group 2 more reactive?

The outermost electrons of the alkaline earth metals (group 2) are more difficult to remove than the outer electron of the alkali metals, leading to the group 2 metals being less reactive than those in group 1. These elements easily form compounds in which the metals exhibit an oxidation state of 2+.

Why are elements most reactive?

The number of electrons in the outermost shell of an atom determines its reactivity. Halogens are highly reactive because they readily gain an electron to fill their outermost shell. Alkali metals are highly reactive because they readily lose the single electron in their outermost shell.

Is Group 1 or group 2 more reactive?

Why is group 17 the most reactive?

The halogens are located on the left of the noble gases on the periodic table. Because the halogen elements have seven valence electrons, they only require one additional electron to form a full octet. This characteristic makes them more reactive than other non-metal groups.

What is the most reactive element on the periodic table?

Reactivity Trend in the Periodic Table The most reactive element is fluorine, the first element in the halogen group. The most reactive metal is francium, the last alkali metal (and most expensive element). The least reactive elements are the noble gases.

Why do elements react more slowly down the periodic table?

Also, as you go down the periodic chart, the elements get bigger so the outer electrons get further away from the nucleus. This means that they are even more “friendly” and they really want to react.

Why do different elements have different levels of reactivity?

Answer 2: The reason that different elements have different levels of reactivity has to do with the structure of the atoms themselves. An atom is made of protons, neutrons and electrons.

Why are some elements more stable than others?

When an atom has particular numbers of electrons around it, it is more stable – 2, 10, 18, etc . If you look at a periodic table, you see that these numbers correspond to the right hand side — the noble gases — these are very NOT reactive. They have a stable number of electrons and do not need to react with other atoms.