BTEC Y1 Revision Quiz One

Why do chemists like the periodic table so much?

• It looks nice

• It lets us be lazy

• It contains a lot of useful information

• Stockholm syndrome

Which determines an element's atomic number?

• Number of neutrons

• Number of protons

• Number of electrons

• Mass

Which is the electron configuration for neutral phosphorus (P)?

• 1s1 2s2 2p3

• 1s2 2s2 2p3

• 1s2 2s2 3p2 3p3

• 1s2 2s2 3p2 3p2

What is the maximum number of electrons that can be in a d subshell?

• 2

• 10

• 6

• 14

How many electrons can be in an f subshell?

• 10

• 14

• 18

• you told us we don't need to know this for assessments

Ionization energy

• Decreases as we move up and across the periodic

• Increases as we move up and across the periodic table

• Increases as we move across the periodic table

• Increases towards the middle of the periodic table

Which would be larger, Fe2+ or Fe3+?

• Fe2+

• Fe3+

• Same size

Answer explanation

Fe2+ has more electrons and so is larger

What charge would we expect on a selenium ion based on its position in the periodic table?

• 1+

• 1-

• 2+

• 2-

What VSEPR shape would we expect for SO4 2- ?

• trigonal planar

• square planar

• tetrahedral

• trigonal bipyramidal

Which is the electron configuration of the fluoride ion, F- ?

• 1s2 2s2 2p6

• 1s2 2s2 2p5

• 1s2 2s2 2p6 3s1

• 1s2 2s2 2p6 3d1