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WorksheetsChidi Chemistry Test
Total questions: 10
Worksheet time: 30mins
The atom and ion of sodium have the same -------------
Chemical properties
Electrical charge
Electrical configuration
Number of protons
Elements from left to right in a given period of the periodic table shows ...........
Similarities in chemical properties
Steady decreases in electronegativity
Steady increase in atomic number
similarities in electronic structure
Li, Na and k are in the same group in the periodic table because they have the same ..................
Atomic radius
Electronic configuration
Ionization energy
Number of valence electrons
Which of the following atom contains the highest number of electrons in the outermost shell
⁸O
¹⁰Ne
¹⁵P
¹⁹K
Which of the following is the relative molecular mass of an alkanoic acid, which has empirical formula CH2O
(H=1, C=12, O=16)
42
45
60
110
What is the maximum number of electrons that can be accommodated in the d-orbital of an atom?
2
6
8
10
Elements P, Q and R have atomic numbers 9, 16 and 20 respectively.
Which of them would gain electrons during ionic bonding?
Q and R
P and R
P and Q
P, Q and R
Physical properties of substances include the following Except
Boiling point
Density
Malleability
Rusting
Sour milk contains .................. acid
Citric
Lactic
Ethanoic
Methanoic
what is the mass number of an element having 20 neutrons, 15 protons and 15 electrons
15
30
35
50
