Periodic Table Development
Who is credited with the development of the periodic table of the elements.
Who is Mendeleev?
Elements in columns 1,2, and 13-18 of the periodic table are classified as what type of elements.
What are main-group?
The outermost electrons that are used in chemical bonding.
What are valence electrons?
Would potassium or oxygen be smaller?
What is oxygen?
Elements that become 2+ ions after they give away their electrons are in this category.
What are the alkaline earth metals?
States that the physical and chemical properties of the elements are periodic functions of their atomic numbers.
What is periodic law?
The elements in Group 1.
What are the alkali metals?
Shorthand method of representing the outer-energy-level electrons as dots written around the symbol for an element.
What is a Lewis symbol?
The biggest ion of Na+ or S2- would be this.
What is S2-?
This group of elements rarely undergo chemical reactions.
What are the noble gases?
Elements in the same column of the periodic table.
What is a group?
The elements in Group 2.
What are the alkaline earth metals?
The maximum number of valence electrons an atom may have.
What is 8?
Which of the following ions would you expect to require the lower first ionization energy to form: Mg+ or Cl-.
What is Mg+?
The salt-formers or the chalcogens.
What are the halogens?
Elements in the same column of the periodic table.
What is a group?
The elements in column 17.
What are the halogens?
How many valence electrons does lead have?
What is 4?
The amount of energy liberated when an electron is added to a neutral atom to form a negatively charged ion.
What is electron affinity?
What is the probable formula of the chloride of lithium?
What is LiCl?
Dobereiner grouped certain elements in groups threes known as these.
What are triads?
What are the noble gases?
The number of atoms with which an element may combine.
What is combining capacity?
Which of the following elements would you expect to have the greatest electronegativity: sodium or chlorine.
What is chlorine?
One property of metals is their ability to lose electrons relatively easily - to be ionized to cations. This is known as what.
What is metallic character?