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  1. What is each vertical column in the periodic table? - Answers

    Jun 3, 2024 · What is a group in periodic table? In the periodic table, a group is a vertical column of elements that share similar chemical properties due to having the same number of valence electrons.

  2. How many elements have two letters in their symbol? - Answers

    Feb 8, 2025 · A chemical symbol for an element is one or two letters. These are found on the Periodic Table of elements.

  3. How many gases in all are there in the periodic table? - Answers

    Jun 3, 2024 · There are 11 gases in the Periodic Table and they are : Hydrogen, Helium, Neon, Argon, Krypton, xenon, radon, chlorine, fluorine, oxygen and nitrogen :D 11

  4. Which 2 groups are the most reactive on the periodic table?

    May 31, 2024 · The alkali metals (Group 1) and the halogens (Group 17) are the most reactive groups in the periodic table. Alkali metals are highly reactive due to their low ionization energies, while …

  5. What does the stair- step line on the periodic table tell you?

    May 21, 2024 · The elements along the stair-step line on the periodic table are known as metalloids. They exhibit properties of both metals and nonmetals, making them unique in their behavior and …

  6. What are the acidity and basicity trends of the periodic table?

    Jan 27, 2025 · The acidity and basicity trends on the Periodic Table are primarily based on the atomic size and electronegativity of elements. Generally, as you move from left to right across a period, …

  7. What is OH in periodic table? - Answers

    Feb 26, 2025 · What is the OH in periodic table? OH is the chemical formula for the hydroxide ion, which consists of one oxygen atom and one hydrogen atom. In the periodic table, oxygen is in group 16 and ...

  8. What is the position of ammonia on the periodic table and how

    Feb 7, 2025 · It is not a position on the Periodic Table, as it is a molecule rather than an element. However, nitrogen, which is a component of ammonia, is located in Group 15 of the periodic table.

  9. What do the horizontal rows on the periodic table represent?

    May 23, 2024 · Whereas the vertical columns on the Periodic Table are called "groups", and represent the number of electrons in an element's outermost electron shell (eg. group 2 elements have …

  10. What elements are least reactive on the periodic table?

    May 25, 2024 · The two most reactive groups of elements in the periodic table are the alkali metals and the halogens. Halogens are nonmetals located in group 17 of the periodic table and include elements …