Periodic Trends and Atomic Theory

Which element on the periodic table has the biggest atomic radius?

• Bromine
• Flourine
• Francium
• Barium

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Coulomb's Law states all of the following except

• The farther an electron is from the nucleus, the less negative its electrostatic potential energy
• Coulombic forces increase down a period
• U_e ^q₁q₂/ d
• the forces between objects can be positive or negative depending on whether they are attracted or repelled 

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The minimum energy needed to remove an electron from an atom or ion is

• Electronegativity 
• potential energy 
• electron configuration 
• Ionization energy

What is the electron configuration for Phosphorous?

• 1s² 2s² 2p⁵ 3s² 3p³
• 1s² 2s² 2p⁶ 3s² 3p³
• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s²
• 1s² 2s² 2p⁶ 3s² 

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What happens to the electronegativity as it moves across and down the periodic table?

• increases across and down
• no change 
• Increases across; decreases down 
• decreases across; increases down 

Which group of elements have no electronegativity?

• halogens
• alkali metals
• noble gases
• alkali earth metals

The tendency of an atom to attract a bonding pair of electrons is

• electronegativity
• electron affinity
• atomization
• ionization energy

How many orbitals make up the p sublevel?

• 7
• 5
• 3
• 1

What element is represented by this model?

• Beryllium
• Oxygen
• Fluorine
• Boron

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NGSS.HS-PS1-1

What is the atomic mass of the atom pictured? 

• 9
• 10
• 18
• 19