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- 1. Multiple Choice
Which elements has the highest first ionisation energy?
Carbon
Barium
Oxygen
Selenium
- 2. Multiple Choice
Which element has the highest electronegativity?
Selenium
Oxygen
Barium
Carbon
- 3. Multiple Choice
Name the element with 11 protons and 12 neutrons.
Vanadium
Magnesium
Sodium
- 4. Multiple Choice
Name the element with 20 protons and 22 neutrons.
Calcium
Titanium
Molybdenum
- 5. Multiple Choice
Group 13 are more reactive than group 17 as they are further left on the periodic table.
True
False
- 6. Multiple Choice
Elements aligned in columns on the Periodic Table...
have similar atomic weights
have similar atomic numbers
has similar chemical properties
- 7. Multiple Choice
Ultimately, the Periodic Table arranges elements in order of...
the first letter of the element's name
increasing atomic weights
increasing atomic numbers
- 8. Multiple Choice
Which atom is an isotope of iron?
protons: 25, neutrons: 31, electrons: 25
protons: 26, neutrons: 30, electrons: 26
protons: 55, neutrons: 29, electrons: 26
- 9. Multiple Choice
What is the charge on an ion of sulfur if one sulfur atom gains two electrons
-2
+2
0
- 10. Multiple Choice
What is the maximum number of electrons that can occupy one orbital?
1
2
3
- 11. Multiple Choice
How many and what kind of subshells are in the n=2 shell of an atom?
2 subshells (s and p) and 4 orbitals
1p subshell
2 subshells, both s subshells
- 12. Multiple Choice
What is the ground state electronic configuration of neon (Ne), atomic number 10?
1s2 2s4 2p4
1s2 1p6 2s2
1s2 2s2 2p6
- 13. Multiple Choice
How many valence electrons are in the following ground state electronic configuration: 1s2 2s2 2p6 3s1
1
3
7
- 14. Multiple Choice
Which element can be expected to form an ion with a +2 charge?
Na: 1s2 2s2 2p6 3s1
O: 1s2 2s2 2p4
Mg: 1s2 2s2 2p6 3s2
- 15. Multiple Choice
The graphs above show the trends with increasing atomic number in some properties of elements within a period of the Periodic Table, excluding Group 18.
Which graph would best represent the trend in the number of occupied electron shells in an atom of each element?
I
II
III
IV
- 16. Multiple Choice
The graphs above show the trends with increasing atomic number in some properties of elements within a period of the Periodic Table, excluding Group 18.
Which graph would best represent the trend in electronegativity of the elements?
I
II
III
IV
- 17. Multiple Choice
In comparison to sulfur, selenium has
the same number of electron shells
a larger core charge
less valence electrons
a larger atomic radius
- 18. Multiple Choice
The larger the atom, the greater the core charge.
True
False
- 19. Multiple Choice
Atomic radius increases as core charge increases.
True
False
- 20. Fill in the Blank
Write the electronic configuration for potassium (K).
- 21. Fill in the Blank
Write the electronic configuration for chromium (Cr)
- 22. Multiple Choice
An element's subshell electron configuration is based on
the Bohr model
the Schrodinger model
the Rutherford model
the Plum Pudding model
- 23. Multiple Choice
Orbitals are..
a group of electrons belonging to the same shell
regions of space where electrons are likely to be found in an atom
a part of a shell in an atom
- 24. Multiple Choice
The multiplying factor for the nano prefix is
109
1 x 101
10-9
10 x 10-9
- 25. Multiple Choice
The electronic configuration of an ion X2+ is 1s2 2s2 2p6 3s2 3p6.
Element X
may be found in the third period of the Periodic Table
has a high electronegativity
is found in Group 18 of the Periodic Table
is metallic
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