Chemistry transition quiz

Al³⁺ has how many protons?

• 26

• 13

• 10

• 3

An example of an isotope of ¹⁴ ₇N is:

• ¹⁵₇N

• ²⁸₁₄S

• ¹⁴₇N^3-

• ²⁸₁₄S^2-

CH₄ is an example of a:

• Ionic compound

• Elemental compound

• Molecular element

• Molecular compound

The number of neutrons in Cl-35 is:

• 17

• 18

• 35

• 36

What is the electronic configuration for Cu⁺?

• [Ar]3d⁹4s¹

• [Ar]3d⁹

• [Ar]3d¹⁰4s¹

• [Ar]3d¹⁰

In the Periodic Table, the rows are known as:

• columns

• periods

• groups

• alkali metals

Which of the following is correct?

• Reactivity of metals decreases going down a group

• Atomic radii decreases going down a group

• Electronegativity increases across a period

• First ionisation energy increases down a group

The shape of the NH₃ molecule would be:

• Tetrahedral

• Pyramidal

• Bent

• Linear

The molecular shape of HCl would be:

• tetrahedral

• pyramidal

• bent

• linear

CH₃Cl would be classified as:

• a non-polar molecule

• a polar molecule