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Subjects
Science State Board
Class 9
Periodic classification of elements
Textbook questions
5.
State whether true or false. If false, correct the statement I
Exercise condition:
3
m.
1.
Newlands’ table is based on atomic masses of elements and modern periodic table is based on atomic number of elements.
True
False
Newlands table based on the atomic masses and the modern periodic table is based on the atomic number.
Newlands table based on the atomic number and the modern periodic table is based on the atomic masses.
2.
Metals can gain electrons.
True
False
Metals can gain electrons.
Metals can lose electrons.
3.
Alloys have the properties of both metals and non-metals.
False
True
Alloys donot have the properties of both metals and non-metals.
Alloys have the properties of both metals and non-metals.
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