Hydrogen is smaller in size compared to other elements in Group 1 because it has only one electron and a smaller atomic radius than the rest of the elements in that group.
lithium is the third element. It is placed in group-1
Cesium, which is in Group 1 of the periodic table, has the largest atoms. This is because as you move down a group, the atomic size generally increases due to the addition of more electron shells.
Element group 1 is called the alkali metals, while element group 7 is called the halogens.
lithium
The reaction of any group 1 element with a dilute acid produces hydrogen gas and a salt specific to the group 1 element used. The general reaction can be represented as 2M(s) + 2HX(aq) -> 2MX(aq) + H2(g) where M represents the group 1 element and X is the negative ion from the acid.
7th period because atomic size down the group increases. And Alkali Earth metals are found only in Group 1. The element is in Group 1 and period 7
Hydrogen is the smallest element. It has only 1 energy level. It is a gas element.
If you mean in the group {1, -1, i, -i, j, -j, k, -k}, the identity element is 1.
If we look at the periodic table, we can see that the first element in Group I is Hydrogen.
lithium is the third element. It is placed in group-1
The second element in group 1 is beryllium, with an atomic number of 4.
Cesium, which is in Group 1 of the periodic table, has the largest atoms. This is because as you move down a group, the atomic size generally increases due to the addition of more electron shells.
That element would be in the Alkali Metals (group one)
element K, or potassium
group 1
Element group 1 is called the alkali metals, while element group 7 is called the halogens.
Hydrogen is in group 1 but is not an alkali metal.