Alkali metal, any of the six chemical elements that make up Group 1 (Ia) of the periodic table—namely, lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). The alkali metals are so called because reaction with water forms alkalies (i.e., strong bases capable of neutralizing acids).
What is the name of group number 2?
For example, group 16 is also described as the “oxygen group” and as the “chalcogens”.
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Group names.
| New IUPAC name | Group 2 |
|---|---|
| Old IUPAC (Europe) | IIA |
| CAS name (U.S.) | IIA |
| Name by element | beryllium family |
| IUPAC recommended trivial name | alkaline earth metals* |
What is the chemical family for Group 1 called?
Alkali metals are the chemical elements found in Group 1 of the periodic table. The alkali metals include: lithium, sodium, potassium, rubidium, cesium, and francium.
What is Group 0 Name?
The Group 0 elements, the NOBLE GASES consist of helium, neon, argon, krypton, xenon and radioactive radon. The chemical inertness of the noble gases is explained.
What group number is arsenic in?
Arsenic, atomic number 33 lies in between phosphorus and antimony in group 15, the so called Nitrogen group of the periodic table.
What is Group 7 called?
Group 7 – Halogens
The Group 7 elements are placed in the vertical column, second from the right-hand side of the periodic table. … Fluorine, chlorine, bromine, iodine, and astatine, all belong to Group 7.
What is group A and B in periodic table?
Elements are arranged by reactivity in the periodic table. … The columns with B (IB through VIIIB) are called the transition elements. The columns with A (IA through VIIIA) are called the main group elements. The elements can also be divided into two main groups, the metals and the non-metals.
What is Group 13 on the periodic table called?
Boron group element, any of the six chemical elements constituting Group 13 (IIIa) of the periodic table. The elements are boron (B), aluminum (Al), gallium (Ga), indium (In), thallium (Tl), and nihonium (Nh).
What is the name of group 3 12 on the periodic table?
All the elements in groups 3–12 are transition metals. Transition metals include the elements that are placed below the periodic table. Those that follow lanthanum (La) are called lanthanides. They are all shiny, relatively reactive metals.
Why is it called Group 8?
Group 8 elements are also known as the noble gasses. These elements already have a full valence shell with 8 valence electrons. This leaves the elements non-reactive as they are already stable and in a low energy state.
Why do we call Group 0 Group 0?
Why is it called group 0? All noble gases are colourless, odourless and unreactive. Because noble gases are so unreactive, there are few patterns, or trends, among the group. This makes them difficult to isolate and identify.
What does the group number mean?
Each column is called a group. The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. … As you keep counting the columns, you’ll know how many electrons are in the outer shell.
What is the color of arsenic?
Arsenic is a silver-gray or white metallic solid element found in nature.
What is unique about arsenic?
Arsenic is best known as a poison and a pigment, but it has many other interesting properties. … It is found in nature as a single stable isotope, arsenic-75. At least 33 radioisotopes have been synthesized. Its most common oxidation states are -3 or +3 in compounds.
How much does arsenic cost?
~ In its pure form, arsenic costs $320 per 100g.