How Does The Periodic Table Work | Properties of Matter | Chemis

What is the number of periods in the periodic table?

• 9

• 8

• 7

• 6

What is the number of groups in the periodic table?

• 16

• 18

• 19

• 17

What does the period in the periodic table show?

• Atomic radius

• Electron shell being filled

• Number of electrons

• Number of protons

What trend is observed as we go from left to right across a period in the periodic table?

• Increase in atomic radius

• Decrease in first ionization energy

• Change from nonmetals to metals

• Decrease in electronegativity

What trend is observed as we go down a group in the periodic table?

• Decrease in atomic radius

• Elements become less metallic

• Increase in reactivity

• Increase in first ionization energy

Which group of elements are known as the noble gases?

• Group 1

• Group 17

• Group 14

• Group 18

What trend is observed as we go down Group 1 in the periodic table?

• Metals become less reactive

• Nonmetals become less reactive

• Metals become more reactive

• Nonmetals become more reactive