Name the Element/Symbol
What is the symbol for gold?
Au
Which group is the most reactive on the periodic table?
Halogens
Does atomic radius increase or decrease as you go across a period?
increase
Which is a conductor of heat/energy?
metals
Is an anion formed from gaining or losing an electron?
gaining
What is the symbol for Lead?
Pb
Which group is the least reactive because it already has its full valence shell?
Noble Gases
Atomic radius decreases down a class. Which other trend also decreases down a class?
Effective Nuclear Charge
Which one is brittle and cannot be hammered into sheets?
nonmetals
Is a cation formed from gaining or losing an electron?
losing
What element has the symbol Ag?
Silver
What are properties of Alkaline-Earth Metals?
They are less reactive than Alkali Earth Metals and form strong bases in water.
Does ionization energy increase or decrease as you go down a group?
decrease
Which tends to lose electrons and forms positive ions?
metals
T/F: The more negative charge an element has, the larger it gets.
True
What element has the symbol Sr?
Strontium
What are properties of alkali metals?
Why does electronegativity increase down a period?
Greater Zeff, so greater ability to attract electrons
Which gains electrons so they can form negative ions?
nonmetals
Why is N^-3 so large?
Because the electrons win out the most compared to others, so Zeff is smallest
What element has the symbol Sb?
Antimony
What are properties of transition metals?
They have all the typical metallic properties (ductility, malleability, conductivity, luster) and compounds that contain these are often bright colors.
Why does electron affinity decrease down a class?
Because there are more energy levels, the energy released when electron is added is less.
What are characteristics of a metalloid?
shiny, but brittle, semiconductors, maybe good for electricity but not heat, really a mixture of metal and nonmetal
Why is Al^3+ so small?
Because the protons win out, so Zeff is largest.