Users' questions

What are the first 20 element in periodic table?

by Rhyley Bryan

What are the first 20 element in periodic table?

As you can see, Lithium, Beryllium, Sodium, Magnesium, Aluminum, Potassium, and Calcium are metals out of the first 20 elements. Hydrogen, Helium, Carbon, Nitrogen, Oxygen, Fluorine, Neon, Phosphorus, Sulfur, Chlorine, and Argon, are non-metals within the first 20 elements.

What are the 20 element of the periodic table?

The elements of the periodic table sorted by atomic number

Atomic number Name chemical element Symbol
18 Argon Ar
19 Potassium K
20 Calcium Ca
21 Scandium Sc

What are the first 21 elements?

Terms in this set (21)

  • Hydrogen. Symbol: H. Atomic Number: 1.
  • Helium. Symbol: He. Atomic Number: 2.
  • Lithium. Symbol: Li. Atomic Number: 3.
  • Beryllium. Symbol: Be. Atomic Number: 4.
  • Boron. Symbol: B. Atomic Number: 5.
  • Carbon. Symbol: C. Atomic Number: 6.
  • Nitrogen. Symbol: N. Atomic Number: 7.
  • Oxygen. Symbol: O. Atomic Number: 8.

What are the 10 examples of elements?

Pure Element Examples

  • Hydrogen (H) – nonmetal.
  • Helium (He) – nonmetal.
  • Oxygen (O) – nonmetal.
  • Neon (Ne) – nonmetal.
  • Nitrogen (N) – nonmetal.
  • Carbon (C) – reactive nonmetal.
  • Silicon (Si) – metalloid.
  • Magnesium (Mg) – alkaline earth metal.

What are the first 20 elements in order?

Hydrogen – H

  • Helium – He
  • Lithium – Li
  • Beryllium – Be
  • Boron – B
  • Carbon – C
  • Nitrogen – N
  • Oxygen – O
  • Fluorine – F
  • Neon – Ne

    • What are the final elements on the periodic table?

    IYPT 2019 Elements 118: Oganesson: The periodic table’s final element (?) Element 118, the final element in our International Year of the Periodic Table series, is oganesson. Oganesson was discovered in 2002 and its properties defy our expectations based on trends in the periodic table.

    What is the Thirteenth Element in the periodic table?

    Thulium is a chemical element having an atomic number 69 with the symbol Tm, discovered by Theodor Cleve in the year 1879. It is the thirteenth element in the lanthanide series in the periodic table. The element is barely traced purely in nature but it is traced in minute amounts in minerals with other rare earth metals.

    What are the numbers under the elements on the periodic table?

    The top number is the atomic number, and all the elements on the periodic table must have this number. The bottom number is the atomic mass (atomic weight) of the element.