WebChemistry questions and answers. The main group elements of the periodic table are those found in groups 1A through 8A. The members of a group exhibit similar … WebNov 18, 2024 · Group 1 elements exhibit similar chemical properties in their reactions with water to liberate hydrogen gas and form metal hydroxide. oxygen to produce metal oxides. chlorine to produce metal chloride. bromine to produce metal bromide. 7. To predict the properties of rubidium, caesium and francium

Periodic table Groups Explained !! (With 1-18 Group …

WebApr 1, 2016 · There are multiple ways of grouping the elements, but they are commonly divided into metals, ... WebAll elements in a group have the same number of valance electrons, and in period elements have the same number of electron shells. There are seven periods and eighteen groups in the modern periodic table. The element belongs to the 3rd period and group 1 of the periodic table is Sodium (Na) having atomic number 11. gwf163 126.com

Group Definition & Facts Britannica

WebElements whose atoms have the same number of valence electrons are grouped together in the Periodic Table.. Generally, elements in Groups 1, 2, and 13 to 17 tend to react to form a closed shell with a noble gas electron configuration ending in #ns^2 np^6#.. METALS. The most reactive metals are those from Groups 1 and 2. WebOn the periodic table, hydrogen and helium are the only two elements in the first row, or period, which reflects that they only have electrons in their first shell. Hydrogen and … Weba Group 1 is composed of hydrogen (H) and the alkali metals. Elements of the group have one s-electron in the outer electron shell. Hydrogen is not considered to be an alkali … gwf1000bs