Atomic Structure & the Periodic Table
Study online at https://quizlet.com/_js4op0
1. How do the properties of transition The density, melting and boiling points, strength
metals compare to those of group one and hardness of transition metals is relatively high
metals? compared to group one metals.
2. How do transition metals react to oxy- Very slowly, if at all.
gen, water and Halogens?
3. How do group 1 metals react to oxy- Very easily.
gen, water and Halogens?
4. Where are the transition metals locat- In the middle.
ed on the periodic table?
5. Why can transition metals be used as As they increase the rate of a chemical reaction
catalysts? without being used up.
6. Fill in the blanks: Coloured
Transition metals form _______ com-
pounds
7. Fill in the blanks: 1, 2, transition metals, differently.
Group 1 metals only form +_ ions,
Group _ metals only form +2 ions,
however most _________ ______ can
form many _____________ charged ions.
(Check)
8. What did John Dalton believe about They are:
atoms? Solid, spherical, and indivisible.
9. What subatomic particle was founded The electron.
first?
1/7
, Atomic Structure & the Periodic Table
Study online at https://quizlet.com/_js4op0
10. What did the discover of electrons re- The plum pudding model of the atom.
sult in?
11. Describe or draw the plumb pudding A cloud/sphere of positive charge with negative
model. electrons embedded within it.
12. Describe the Ruderford/alpha particle Alpha particles were fired at a sheet of gold only
scattering experiment. a few atoms thick, causing them to be deflected
or bounced back off the sheet (known as alpha
scattering).
13. What did scientists expect to happen The alpha particles to travel straight through the
during the alpha scattering/Ruderford gold foil.
experiment.
14. What conclusion did scientists come The mass and positive charge of an atom must be
to because of the Ruderford experi- concentration in the centre of an atom, this space
ment? being named as the nucleus.
15. What model resulted from the conclu- The Nuclear model
sions of the Ruderford experiment?
16. What did the nuclear model show of The electrons orbiting the nucleus, but not at set
electrons before Niels Bohr's contribu- distances.
tions?
17. What contribution did Neils Bohr Electrons orbit the nucleus at multiple fixed dis-
make to the Nuclear model? tances in shells/energy levels.
2/7
Study online at https://quizlet.com/_js4op0
1. How do the properties of transition The density, melting and boiling points, strength
metals compare to those of group one and hardness of transition metals is relatively high
metals? compared to group one metals.
2. How do transition metals react to oxy- Very slowly, if at all.
gen, water and Halogens?
3. How do group 1 metals react to oxy- Very easily.
gen, water and Halogens?
4. Where are the transition metals locat- In the middle.
ed on the periodic table?
5. Why can transition metals be used as As they increase the rate of a chemical reaction
catalysts? without being used up.
6. Fill in the blanks: Coloured
Transition metals form _______ com-
pounds
7. Fill in the blanks: 1, 2, transition metals, differently.
Group 1 metals only form +_ ions,
Group _ metals only form +2 ions,
however most _________ ______ can
form many _____________ charged ions.
(Check)
8. What did John Dalton believe about They are:
atoms? Solid, spherical, and indivisible.
9. What subatomic particle was founded The electron.
first?
1/7
, Atomic Structure & the Periodic Table
Study online at https://quizlet.com/_js4op0
10. What did the discover of electrons re- The plum pudding model of the atom.
sult in?
11. Describe or draw the plumb pudding A cloud/sphere of positive charge with negative
model. electrons embedded within it.
12. Describe the Ruderford/alpha particle Alpha particles were fired at a sheet of gold only
scattering experiment. a few atoms thick, causing them to be deflected
or bounced back off the sheet (known as alpha
scattering).
13. What did scientists expect to happen The alpha particles to travel straight through the
during the alpha scattering/Ruderford gold foil.
experiment.
14. What conclusion did scientists come The mass and positive charge of an atom must be
to because of the Ruderford experi- concentration in the centre of an atom, this space
ment? being named as the nucleus.
15. What model resulted from the conclu- The Nuclear model
sions of the Ruderford experiment?
16. What did the nuclear model show of The electrons orbiting the nucleus, but not at set
electrons before Niels Bohr's contribu- distances.
tions?
17. What contribution did Neils Bohr Electrons orbit the nucleus at multiple fixed dis-
make to the Nuclear model? tances in shells/energy levels.
2/7
