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You can create printable tests and worksheets from these Grade 12 Atomic Structure questions! Select one or more questions using the checkboxes above each question. Then click the add selected questions to a test button before moving to another page.

How are isotopes of an element different from one another?
1. they have different numbers of electrons
2. they have different numbers of protons
3. they have different numbers of neutrons
4. they have different numbers of protons and neutrons
Positively-charged ions are called
1. anions
2. cations
3. electrons
4. protons
According to Coulomb's law, the energy between an ion pair is inversely proportional to which of the following parameters?
1. Distance of separation (r)
2. Electronic charge (e)
3. Permittivity ($epsi_0$)
4. Ion pair $(Z^+Z^-)$
Which of the following hybridization does $IF_7$ undergo?
1. sp
2. $sp^(3)$
3. $sp^(3)d^(3)$
4. $sp^(2)$
What is the bond angle of $BF_3$ molecule?
1. $180deg$
2. $120deg$
3. $72deg$
4. $90deg$
Which of the following molecules undergoes sp hybridization?
1. $BeF_2$
2. $BF_3$
3. $CH_4$
4. $PCl_5$
What is the bond angle of the compound that undergoes $sp^(3)$ hybridization?
1. $109.5deg$
2. $120deg$
3. $90deg$
4. $180deg$