Stage 1 Recap quiz

Which is the most electronegative element out of chlorine and bromine?

• chlorine

• bromine

Write the electron configuration of a nitrogen atom using subshell notation (don't put spaces)

What is the name for Cu(NO₃)₂ ?

Write the chemical formulae for calcium bromide: (don't put sub/superscripts)

State the oxidation number for carbon in CF₄

State the shape of PH₃

• trigonal planar

• trigonal pyramid

• tetrahedral

• v-shaped

State the polarity of PH₃

• non-polar

• polar

State the strongest type of secondary force between PH₃ molecules

• dispersion forces

• dipole-dipole

• hydrogen bonding

• ion-dipole

What is the name for HNO₃?

Calculate the number of moles present for a sample of HCl with a concentration of 0.250 M and volume of 50.0 mL. Give your answer to 3sf and without units.