Periodic TableTest

Which of the following trends in the periodic table should be expected as the atomic number of the halogens increases from fluorine (F) to iodine (I)?

• Atomic radius decreases.

• Atomic mass decreases.

• Electronegativity decreases.

• Electron number decreases

Which of the following correctly describes a trend from top to bottom in the group 2 (2A) elements on the periodic table?

• Atomic number decreases.

• Ionic charge increases.

• Ionic radius decreases.

• Atomic radius increases.

Which ion of nitrogen is the largest?

Possible Answers:

• N2−

• N3−

• N5+

• N3+

Elements that have similar properties will have the same __________ on the periodic table.

Possible Answers:

• period

• atomic charge

• atomic mass

• atomic radius

• group

Which of these elements is the least electronegative?

Possible Answers:

• Sodium

• Francium

• Cesium

• Potassium

• Rubidium

Which of the following atoms has the largest atomic radius

• barium (Ba)

• iodine (I)

• chlorine (Cl)

• magnesium (Mg)

Which element has the same number of valence electrons as tellurium?

Possible Answers:

• Bromine

• Phosphorus

• Carbon

• Sulfur

• Helium

Which of these elements has the greatest ionization energy?

Possible Answers:

• Carbon

• Boron

• Oxygen

• Nitrogen

• Fluorine

Which of the following is the most electronegative element?

Possible Answers:

• Oxygen

• Chlorine

• Fluorine

• Nitrogen

Conductivity in a metal results from the metal atoms having

• high electronegativity

• highly mobile protons in the nucleus

• high ionization energy

• highly mobile electrons in the valence shell