S2-Q6- U2 MPT - AR

The elements of the modern Periodic Table are organized left to right according to which property?

• Relative atomic mass

• Atomic number

• Reactivity

• number of electrons and protons in atoms

Elements in the same group of the periodic table contain an equal number of--------

• Valence electrons

• Valence electron shells

• Electrons

• Electron shells

Which one of the following groups could X

be in?

• group 15

• group 13

• group 17

• group 2

Which of the following is an alkaline earth metal?

• Scandium

• Titanium

• Strontium

• Lithium

Oxygen commonly forms two covalent bonds. In which group of the Periodic Table is oxygen located?

• group 2

• group 16

• group 18

• group 4

In which group of the periodic table is there an atom with a valence shell electron configuration of ns² (n-1)d¹⁰

• 7B

• 2B

• 1B

• 8

Which statement is correct when comparing the size of a cation with the corresponding atom?

• The radius of the cation is smaller than the radius of the atom from which it was formed.

• The radius of the cation is larger than the radius of the atom from which it was formed.

• The radius of the cation is the same as the radius of the atom from which it was formed.

Which of the following elements has the largest atomic radius across the periodic table?

• Cu29

• Sr₃₈

• Ca₂₀

• Al₁₃

ionic compound Y₂X , then ?

• Y is located in group 6A while X is in 1A

• Y is non-metal while X is metal

• X is metalloid while Y is non-metal

• Y is located in group 1A while X is in group 6A

element of configuration nS²nP⁵ is considered ------

(you can choose more than one answer)

• Nobel gas

• Halogen

• group 7A

• group 17