atomic number 21 Synonyms

No Synonyms and anytonyms found

atomic number 21 Meaning

Wordnet

atomic number 21 (n)

a white trivalent metallic element; sometimes classified in the rare earth group; occurs in the Scandinavian mineral thortveitite

atomic number 21 Sentence Examples

  1. Scandium, atomic number 21, is a silvery-white transition metal with a high melting point.
  2. The nucleus of a scandium atom contains 21 positively charged protons.
  3. Scandium has an atomic mass of 44.956, making it relatively light compared to other transition metals.
  4. The electron configuration of scandium (1s² 2s² 2p⁶ 3s² 3p⁶ 4s²) gives it three valence electrons.
  5. Scandium is commonly used in alloys to improve their strength and corrosion resistance.
  6. The name "scandium" is derived from the Latin word "Scandia," which refers to Scandinavia, where the element was first discovered.
  7. Scandium is also found in trace amounts in minerals such as thorium and euxenite.
  8. The atomic number 21 of scandium is determined by the number of protons in its nucleus.
  9. Scandium forms stable complexes with a wide range of ligands, making it a versatile coordination compound.
  10. Despite its atomic number 21, scandium exhibits properties of both metals and nonmetals.

FAQs About the word atomic number 21

a white trivalent metallic element; sometimes classified in the rare earth group; occurs in the Scandinavian mineral thortveitite

No synonyms found.

No antonyms found.

Scandium, atomic number 21, is a silvery-white transition metal with a high melting point.

The nucleus of a scandium atom contains 21 positively charged protons.

Scandium has an atomic mass of 44.956, making it relatively light compared to other transition metals.

The electron configuration of scandium (1s² 2s² 2p⁶ 3s² 3p⁶ 4s²) gives it three valence electrons.