Atoms, Bonding, and the Periodic Table

Created by Anita111

Question or Hint Answer or Word

What are Valance Electrons? Electrons in an atom that have the highest energy.
The number of valence electrons in each atoms helps determine the_____________of that elements chemical properties (wrong answers: physical properties, atomic number, reactivity )
Chemical properties of an element are determined by what in that element? The number of valence electrons in the atoms of that element
Which Noble Gas has only 2 valence electron? Helium (wrong answers: Hydrogen, Nitrogen , Sodium)
Noble gases are the least reactive elements in the periodic table because they all have only (except for Helium) 8 valence electrons (wrong answers: 6 valence electrons , 2 valence electrons , isotopes )
Why do the properties of elements change in a regular way across a period? Because the number of vlance electrons changes in a pattern that repeats for each period
Halogens have how many valence electrons? 7 (wrong answers: 2, 6, 8)