Periodic Table - Test Review 2022

Which atom has the largest atomic radius/size?

• Francium (Fr)

• Fluorine (F)

• Carbon (C)

• Uranium (U)

Which of the following describes Noble Gasses?

• highly electronegative.

• solid at room temperature.

• good conductor of heat

• very low chemical reactivity

Noble Gasses has ______ valence electrons.

• 8

• 7

• 1

• 18

Which of these elements is most reactive?

• Group 1

• Group 2

• Groups 3-12

• Group 14

Which of the following describes Group 1 elements?

• Loses 1 electron, highly reactive, explodes in water

• Loses 2 electrons, unreactive

• Stable due to a full outer shell

• Gains 1 electron and has a positive charge

Why are Group 1 elements so reactive?

• They only need to lose 1 valence electron to have a full outer shell

• They only need to gain 1 valence electron to have a full outer shell

• They are unreactive

• Ionization Energy

Compared to non-metals, metals have a

• low electronegativity

• high electronegativity

• small atom size

• gain electrons

Fluorine has a high electronegativity because

• because the electron have a high attraction to the positive nucleus

• it has the smallest number of electrons.

• it is a large atom and the largest number of protons

• ionization

Atomic radius

• increases as you go down a group, going from period 1 to period 7

• increases as you go across a period, left to right

• all atoms have same radius

• Fluorine is the largest atom

The most electronegative atom on the periodic table

• Fr

• F

• He

• H