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WorksheetsCHAPTER 3.1 CLASSIFICATION OF ELEMENT
Total questions: 13
Worksheet time: 5mins
In the modern periodic table, the period indicates the value of:
Atomic number
Atomic mass
Principal quantum number
Azimuthal quantum number.
The elements which occupy the middle block (d) in the periodic table are called ................ elements.
transition
alkali
alkaline earth
noble
In the periodic table, the elements which are similar in their Chemical & physical properties are located in the same ................
period
group
nucleus
energy level
Choose which of the following position is correct for Neon (z = 10)
Period : 2
Group : 17
p-block
Period : 2
Group : 18
s-block
Period : 2
Group : 18
p-block
S has the electronic configuration of 1s2 2s2 2p6 3s2 3p4 choose the correct position of S element in periodic table
Group 6
Period 3
p-block
Group 16
Period 3
s-block
Group 16
Period 3
p-block
The chemical properties of calcium
(20 Ca) are similar to those of .......................
19K
12Mg
25Mn
3Li
Iron (Fe) has the valence electronic configuration of 4s2 3d6. Which of the following is the correct position of Fe element?
Period: 4
group: 18
d-block
Period : 4
Group : 2
d-block
Period : 4
Group : 8
d-block
Atoms of elements in group 1 have ____________.
one electron in their outermost energy level
two electrons in their outermost energy level
seven electrons in their outermost energy level
eight electrons in their outermost energy level
Which of the following is the outermost shell for elements of period 2 ?
n = 2
n = 3
n = 1
n = 4
The atoms of elements belonging to the same group of periodic table have the same
number of protons.
number of electrons.
number of neutrons.
number of electrons in the outermost shell.
