metallic/nonmetallic
what is one characteristic of a metal
What is ionization energy
energy needed to remove an electron
What is electron affinity
energy released when an electron is added (strength of attraction for electrons)
What is the atomic radius?
The distance between the nucleus and the outer electrons OR the size of an atom
What are the horizontal rows called?
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periods
What is one character of a nonmetal
brittle, dull, not a good conductor
What happens to ionization energy as you move down a group?
decreases
Do atoms with a larger atomic radius have more or less electron affinity?
Why does atomic radius increase as you go down a group?
number of energy levels increase
What are the vertical columns (up and down) on the periodic table?
(two possible answers)
groups or families
Where do you find the metalloids on the periodic table?
On the stepline
Which type of element has the highest ionization energy? (metals, nonmetals or metalloids)
nonmetals
What happens to electron affinity going across a period?
increases
Why does atomic radius decrease as you go across a period?
more protons are added, but the same number of energy levels (more attraction between positive nucleus and electrons)
What is the symbol for potassium?
K
What happens to metallic character as you go down a group?
increases
Which element has a higher ionization energy:
Lithium (Li) or Francium (Fr)
What happens to electron affinity as you go down a group?
decreases
Which element has a larger atomic radius?
Boron (B) or Indium (In)
Indium (In)
What is the symbol for Sodium?
Na
What makes an element "more metallic"
ability to give up electrons
Why do elements with larger atomic radius have lower ionization energy?
Electrons are further away from the positive nucleus so they are easier to remove.
Which element has a higher electron affinity?
Oxygen (O) or Barium (Ba)
Oxygen (O)
Where do you find the elements with the largest atomic radii
(top left, top right, bottom left, bottom right)
bottom left
Which element is in period 4, group 6