Periodic Trends Worksheet - Livingston
Periodic Trends Worksheet Name:________________________ Date:_________Pd:_______
Draw the trend for ATOMIC RADIUS
1. Rank each of the following in order of INCREASING atomic radius
a. F, K, Br _________________________
b. Os, Ni, Fe _________________________
2. Rank each of the following in order of DECREASING atomic radius
a. Cl, Br, Ga _________________________
b. Ca, Rb, C _________________________
Draw the trend for IONIZATION ENERGY
3. Rank each of the following in order of INCREASING ionization energy
a. O, S, Ge _________________________
b. Be, Ba, B _________________________
4. Rank each of the following in order of DECREASING ionization energy
a. Cl, Cu, Au _________________________
b. Te, Sb, Xe _________________________
Draw the trend for ELECTRONEGATIVITY
5. Rank each of the following in order of INCREASING electronegativity
a. Na, K, Ne _________________________
b. Fr, Ca, Co _________________________
6. Rank each of the following in order of DECREASING electronegativity
a. As, Se, Sn _________________________
b. Xe, Ru, Hf _________________________
7. An atom has a negative electron affinity. Circle all of the statements that might apply to this atom.
a. It may be a noble gas.
b. It becomes less stable when electron is added.
c. It becomes more stable when electron is added.
d. It is probably a metal.
e. It is probably a non-metal.
f. There is a release of energy when electron is added.
g. Energy is absorbed when electron is added.
8. Table below gives the ionization energies for potassium, bromine and calcium. Identify which element is which from the data given. Explain your answer in the space provided.
|ELEMENT 1 | |ELEMENT 2 | |ELEMENT 3 |
Ionization energy number |Enthalpy kJ/mol | |Ionization energy number |Enthalpy
kJ/ mol | |Ionization energy number |Enthalpy kJ/mol | |1st |418.8 | |1st |1139.9 | |1st |589.8 | |2nd |3052 | |2nd |2103 | |2nd |1145.4 | |3rd |4420 | |3rd |3470 | |3rd |4912.4 | |4th |5877 | |4th |4560 | |4th |6491 | |
ELEMENT 1 is __________. ELEMENT 2 is ___________. ELEMENT 3 is _________.
Explanation:
Place in order from smallest to largest atomic/ ion radius: Fe Fe+2 Fe+1 Fe+2 < Fe+1 < Fe
Place in order from smallest to largest atomic/ ion radius: O O-2 O-1 O < O-1 < O-2
Place in order from smallest to largest atomic/ ion radius: Na Na+1 Cl Na+1 < Cl < Na
Put in order of increasing size (smallest to largest): K Cl-1 Ar S-2
a. Write the abbreviated electron configuration for each ion or atom:
b. Group elements
c. Use protons to break ties
ANSWER: __Ar___ < __Cl-_ < __S-2__ < ___K_____
OTHER CHAPTER VOCABULARY – define the following terms:
Malleable- thin sheets
Ductile- wire
Oxidation state- charge
Allotrope-2 substances made of same element but have different properties
Alloy- solution of 2 metals or metal and another element (14 karat gold)
Periodic Trends Worksheet Name:____Key_________________ Date:_________Pd:_______
Draw the trend for ATOMIC RADIUS
1. Rank each of the following in order of INCREASING atomic radius
a. F, K, Br _______F, Br, K__________________
b. Os, Ni, Fe _______Ni, Fe, Os__________________
2. Rank each of the following in order of DECREASING atomic radius
a. Cl, Br, Ga _______Ga, Br, Cl__________________
b. Ca, Rb, C _______Rb, Ca, C__________________
Draw the trend for IONIZATION ENERGY
3. Rank each of the following in order of INCREASING ionization energy
a. O, S, Ge _____Ge, S, O____________________
b. Be, Ba, B _____Ba, B, Be____________________
4. Rank each of the following in order of DECREASING ionization energy
a. Cl, Cu, Au _____Cl, Cu, Au____________________
b. Te, I, Xe _____Xe, Sb, Te____________________
Draw the trend for ELECTRONEGATIVITY
5. Rank each of the following in order of INCREASING electronegativity
a. Na, K, Ne _____Ne, K, Na_____(Ne = noble gas, doesn’t form bonds, no electronegativity value)
b. Fr, Ca, Co _____Fr, Ca, Co____________________
6. Rank each of the following in order of DECREASING electronegativity
a. As, Se, Sn _____Se, As, Sn____________________
b. Xe, Ru, Hf _____ Ru, Hf, Xe, ____________________
7. An atom has a negative electron affinity. Circle all of the statements that might apply to this atom.
a. It may be a noble gas.
b. It becomes less stable when electron is added.
c. It becomes more stable when electron is added.
d. It is probably a metal.
e. It is probably a non-metal.
f. There is a release of energy when electron is added.
g. Energy is absorbed when electron is added.
8. ELEMENT 1 is _____K_____. ELEMENT 2 is ____Br_______. ELEMENT 3 is _Ca____.
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