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Periodic Table Flashcards | StudBud
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Periodic Table
Periodic Table
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1
__________ gave the idea for the first time to classify elements as per their properties.
Dobereiner
Mendeleev
Newland
John
2
On moving from left to right in a periodic table, the size of an atom?
Increases
Decreases
First increases the decreases
Does not change
3
Which of the following is a false statement?
Chlorine is an oxidizing agent
Lithium is amphoteric
Nitrogen has greater IE_1than oxygen
Fluorine is more electronegative than chlorine
4
The group number of an element in the periodic table indicates:
the atomicity
none of the above
valency with respect to hydrogen
the number of electrons in the outermost shell
5
The modern-day periodic table arranges the elements in order of increasing atomic mass.
False
True
6
The elements in the middle of the periodic table are called:
noble gases
metalloids
rare earth element
transition elements
7
Which element is in group 2 and period 3 of the periodic table?
Calcium
Boron
Magnesium
8
In Mendeleev's periodic table, the gap was not left for one of the following elements. This element is:
beryllium
scandium
germanium
potassium
9
The ability of an atom to attract electrons towards itself is called
Electronegativity
Electron affinity
Shielding effect
Ionization energy
10
In the periodic table elements with similar valence shell configurations are placed in
I don't know where valence shell configuration are placed in
Can be placed any where
Same group
Different groups
11
Correct increasing order of first ionisation potential is
Na->Mg>Al>Si
NaAI
NaCi
Na
12
Physical properties depends on the
size of protonsize
size of neutron
size of electrons
size of atom size
13
All the elements in a group have the same...
Number of valence electrons
Atomic weight
Atomic number
None of the above
14
The periodic functions of the __________ are the properties of respective elements.
Atomic Weights
Chemical properties
Atomic Number
No of protons
15
The maximum valency of an element with atomic number 7 is
3
5
2
4
