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- 1. Multiple Choice
Who is the Greek philosopher that developed the idea about atoms in 500 BC?
Dalton
Plato
Aristotle
Democritus
- 2. Multiple Choice
What model of the atom replaced Bohr's model?
Heisenberg's model
Thomson's model
Rutherford's model
Quantum Mechanical model
- 3. Multiple Choice
Regions in which electrons are likely to be found is called
atomic orbitals
principal energy level
energy sublevel
spin
- 4. Multiple Choice
What atom matches this electron configuration? 1s22s22p63s23p64s23d10?
30Zn
29Cu
26Fe
40Zr
- 5. Multiple Choice
What is the electron configuration for a Sulfur atom (16S) ?
1s2 2s2 2p6 3p6
1s2 2s2 2p6 3s23p6
1s2 2s2 2p6 3s23p4
1s2 2s2 2p6 3s23d6
- 6. Multiple Choice
The electron configuration of an atom is 1s22s22p6. The number of valence electrons in the atom is
6
8
2
10
- 7. Multiple Choice
Given the Oxygen's electron configuration 8O 1s22s22p4, it will give us an idea that Oxygen belongs to group number___
2
4
6
8
- 8. Multiple Choice
In which period of the periodic table of elements would you find 26Fe with an electron configuration of 1s22s22p63s23p64s23d6,
3
4
5
6
- 9. Multiple Choice
How many valence electrons are represented here?
2
5
7
8
- 10. Multiple Choice
A region around the nucleus of an atom where an electron is likely to be moving is called
atomic orbital
principal energy level
energy sublevel
spin
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