Periodic Table and Trends

Electronegativity is...

• how good an atom is at attracting electrons
• the ability of an atom to lose electrons
• the energy required to remove an electron from a specific atom
• how easy it is to make friends. 

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The atom with the largest atomic radius in Group 18 is - 

• Ar
• He
• Kr
• Rn

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Atomic radius generally increases as we move __________.  

• down a group and from right to left across a period 
• up a group and from left to right across a period 
• down a group and from left to right across a period 
• up a group and from right to left across a period 

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Which of the following pairs of elements have similar properties

• Barium and Calcium
• Sodium and Magnesium
• Nickel and Copper
• Lithium and Helium 

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The minimum energy required to remove an electron from the ground state of an atom

• electron configuration
• energy levels
• ionization energy
• ionic bond

A group of elements that includes the most active of the elements is the -

• halogens.
• noble gases.
• nitrogen group.
• alkaline earth metals.

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What term is used to describe "an atom's tendency to attract electrons to itself when is is chemically combined with another element"

• electronation
• electron affinity
• electronegativity
• electrolysis

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The Modern Periodic Table of Elements is arranged by

• atomic mass
• atomic number
• valence electrons
• number of isotopes

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Sodium (Na) is found in period 

• 3
• 2
• 4
• 1

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What does the 6 represent?

• atomic mass
• atomic number
• element name
• chemical symbol 

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