they all have 2 electrons in the first shell.
In group 2 elements like alkaline earth metals, the common oxidation number is +2, not -1. This is because these elements tend to lose 2 electrons to achieve a stable octet configuration and form 2+ cations.
The oxidation number for group 2 elements is typically +2. These elements have 2 valence electrons that they can lose to form a 2+ cation.
The oxidation numbers for the first 20 elements in the periodic table are typically as follows: Group 1 elements: +1; Group 2 elements: +2; Group 13 elements: +3; Group 14 elements: +4 or -4; Group 15 elements: -3; Group 16 elements: -2; Group 17 elements: -1; Group 18 elements: 0. Keep in mind that oxidation numbers can vary in different compounds and contexts.
The elements that make up Group 18 on the Periodic Table are caleed noble (or inert) gases.
Hydrogen has -1 and +1 oxidation numbers. Other elements have +1 only
+2
Elements in group 2 mostly takes the oxidation number +II.
In group 2 elements like alkaline earth metals, the common oxidation number is +2, not -1. This is because these elements tend to lose 2 electrons to achieve a stable octet configuration and form 2+ cations.
group 2 elements are alkaline elements.one of the element in d group is berrylium
Copper, gold, and silver are the choices that represent a group of elements with common characteristics. All of these elements are metals.
The oxidation number for group 2 elements is typically +2. These elements have 2 valence electrons that they can lose to form a 2+ cation.
The most common charge (or valency) is -2. But there are compounds formed by elements of group VIA with valency from -2 to +6
Generally for group 16 elements, like oxygen, sulphur, selenium.
Elements in group 2, like beryllium, magnesium, calcium, etc., have similar properties because they all have the same number of valence electrons (2). This results in common characteristics such as reactivity and the ability to form 2+ ions.
In space, the most common elements are?
The oxidation numbers for the first 20 elements in the periodic table are typically as follows: Group 1 elements: +1; Group 2 elements: +2; Group 13 elements: +3; Group 14 elements: +4 or -4; Group 15 elements: -3; Group 16 elements: -2; Group 17 elements: -1; Group 18 elements: 0. Keep in mind that oxidation numbers can vary in different compounds and contexts.
Group 1 elements are more reactive than that of group 2 elements.