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WorksheetsCHEM1405 Chapter 2 Quiz
Total questions: 11
Worksheet time: 6mins
This symbol means
The boron atom has 6 protons and 5 neutrons
The boron atom has 11 protons and 5 neutrons
The boron atom has 5 protons and 11 neutrons
The boron atom has 5 protons and 6 neutrons
Among Dalton's atomic theory, which one below is NOT correct to modern chemistry?
Atoms of a particular element have identical properties
All matter consists of tiny particles called atoms
Chemical change involves joining, separating, or rearranging atoms
Atoms of different elements have different properties
Who found that the majority of the mass is located in a small, dense region?
Bohr
Rutherford
J. J. Thomson
Albert Einstein
In the electromagnetic spectrum, which one below has the highest energy?
visible light
IR light
radio
UV light
What is defined as a group in the periodic table?
the column
the row
the number of letters
metal or nonmetal
One element is located in group 2/IIA, and period 4. What's this element's name?
Strontium
Calcium
Ca
Sr
The electron configuration for K is
1s22s22p63s23p64s1
1s22s22p63s23p64s2
1s22s22p63s23p6
1s22s22p63s1
How many electrons the subshell 4f can hold at most?
5
14
7
10
How many valence electrons does a chlorine atom have?
17
8
7
5
Which atom below has the largest size?
F
Br
Cl
I
Which one below is NOT a subatomic particle?
proton
photon
electron
neutron
