HALOGENS
This group in the periodic table includes Fluorine (Fl), Chlorine (Cl), Bromine (Br), Iodine (I) and Astatine (At). These are all non-metals and are chemically reactive. They are most reactive towards alkali and alkaline earth metals. They react with metals to form negative ions by accepting electrons from other elements, then these ions combine with positive metal ions, an example would be salt (NaCl). They also react with non-metals to form useful compounds like antiseptics, medicine and additives. They have 7 valence electrons and they all have a charge of -1, meaning they have a high electronegativity; to take an pull an electron to them to have a full shell. These elements are located in group 17.
This group in the periodic table includes Fluorine (Fl), Chlorine (Cl), Bromine (Br), Iodine (I) and Astatine (At). These are all non-metals and are chemically reactive. They are most reactive towards alkali and alkaline earth metals. They react with metals to form negative ions by accepting electrons from other elements, then these ions combine with positive metal ions, an example would be salt (NaCl). They also react with non-metals to form useful compounds like antiseptics, medicine and additives. They have 7 valence electrons and they all have a charge of -1, meaning they have a high electronegativity; to take an pull an electron to them to have a full shell. These elements are located in group 17.
NOBLE GASES
These gases all have charges of zero and are located under group 18 on the periodic table. The noble gases consist of Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn). These gases are usually highly nonreactive due to their full shell of valence electrons, however, when they are under standard conditions, they have low chemical reactivity. They have low boiling temperatures but as you go down the column, boiling and melting temperatures increase. Noble gases were previously referred to as "inert" gases which means "inactive." These elements are often used and contributes to our industry in many ways!
These gases all have charges of zero and are located under group 18 on the periodic table. The noble gases consist of Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn). These gases are usually highly nonreactive due to their full shell of valence electrons, however, when they are under standard conditions, they have low chemical reactivity. They have low boiling temperatures but as you go down the column, boiling and melting temperatures increase. Noble gases were previously referred to as "inert" gases which means "inactive." These elements are often used and contributes to our industry in many ways!
ALKALI METALS
The Alkali metals are located under group 1, these include Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs), and Francium (Fr). These metals hare silver in color,shiny (but when exposed to air and moisture it loses its lustre), they are malleable/ductile and soft enough that they can be cut with something sharp easily. Compared to other metals, they have a low density. They also have low melting and boiling temperatures and low ionization energies. They can form salts when violently reacted with halogens. These metals have a very high radioactivity. These metals have a charge of +1 and will lose their outermost electron to form a cation.
The Alkali metals are located under group 1, these include Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Cesium (Cs), and Francium (Fr). These metals hare silver in color,shiny (but when exposed to air and moisture it loses its lustre), they are malleable/ductile and soft enough that they can be cut with something sharp easily. Compared to other metals, they have a low density. They also have low melting and boiling temperatures and low ionization energies. They can form salts when violently reacted with halogens. These metals have a very high radioactivity. These metals have a charge of +1 and will lose their outermost electron to form a cation.
ALKALINE EARTH METALS
The Alkaline Earth metals; Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Ba), and Radium (Ra) are located under group 2. These metals are highly reactive after the Alkali metals. They are silver in color, have a low density, and are ductile and malleable as they are softer than most metals except alkali metals. These metals when at boil and melt, have very high temperatures. These elements react with water and halogens easily. They have two valence electrons (a charge of +2) and have a low electronegativity, therefore tend to lose electrons easily.
The Alkaline Earth metals; Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Ba), and Radium (Ra) are located under group 2. These metals are highly reactive after the Alkali metals. They are silver in color, have a low density, and are ductile and malleable as they are softer than most metals except alkali metals. These metals when at boil and melt, have very high temperatures. These elements react with water and halogens easily. They have two valence electrons (a charge of +2) and have a low electronegativity, therefore tend to lose electrons easily.