Simple Quiz On Atomic Structure
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Simple quiz on atomic structure, chemical bonding and the periodic table.
- 1.What are isotopes?
- A.
A) They have the same number of neutrons but different number of protons.
- B.
B) They have different number of neutrons and protons but same number of electrons
- C.
C) They have different number of neutrons and electrons but same number of protons
- D.
D) They have different number of neutrons but same number of protons.
- 2.If a principal quantum shell has the number n=2, what is the maximum number of electron it can have?
- A.
2
- B.
4
- C.
6
- D.
8
- 3.Which electronic configuration represents Chromium?
- A.
A) 1s2 2s2 2p6 3s2 3p6 4s1
- B.
B) 1s2 2s2 2p6 3s2 3p4 4s2
- C.
C) 1s2 2s2 2p6 3s2 3p5 4s1
- D.
D) 1s2 2s2 2p6 3s2 4s1 3p6
- 4.Given that Copper exists as copper 63 and copper 65 and their relative atomic mass is 63.6, find the relative abundance of each isotope.
- A.
Cu63 - 30 Cu 65 - 70
- B.
Cu 63 - 30 Cu 65 - 70
- C.
Cu 63 - 40 Cu 65 - 60
- D.
Cu 63 - 60 Cu 65 - 40
- 5.Particles, ions or atoms that have the same number of ... are isoelectronic?
- A.
Protons
- B.
Neutrons
- C.
Electrons
- D.
Elements
- 6.Which electronic configuration is stable?
- A.
A) 1s2 2s2 2p6
- B.
B) 1s2 2s2 2p6 3s2 3p6 4s1
- C.
C) 1s2 2s2 2p6 3s2
- D.
D) 1s2 2s2 2p3
- 7.Aufbau’s Principle states that:
- A.
A) Electrons in their ground state will occupy orbitals in order of their energy level; the lowest energy levels are always filled first.
- B.
B) The orbitals of a subshell must be singly occupied with electrons of parallel spin before they can be occupied in pairs.
- C.
C) An orbital cannot contain more than 2 electrons. If 2 electrons occupy the same orbitals, they must have opposite spins; i.e. one up spin and one down spin
- D.
D) None of the above
- 8.Since isotopes have the same number of electrons, they then have the same...?
- A.
Chemical properties
- B.
Melting point
- C.
Boiling point
- D.
Density
- 9.Element P has the electronic configuration 2.8.6.Element Q has the electronic configuration 2.8.8.2.Which statement about the compound PQ is probably correct?
- A.
It will have a low boiling point.
- B.
It will conduct electricity when molten.
- C.
An aqueous solution of the compound will not conduct electricity.
- D.
It will have a giant covalent structure.
- 10.Xenon is in group 0. Which statement about xenon is true?
- A.
Xenon molecules are diatomic
- B.
Xenon supports combustion
- C.
Xenon has two outer electrons
- D.
Xenon is unreactive
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