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प्रश्न
State whether true or false. If false, correct the statement.
Metals can gain electrons.
पर्याय
True
False
उत्तर
False.
Correct Statement: Metals tend to lose electrons to attain Noble Gas electron configuration.
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संबंधित प्रश्न
An element X is in group 2 of the periodic table What will be the formula of its chloride?
An element X from group 2 of the periodic table reacts with an element Y from group 17 to form a compound.
(a) What is the nature of the compound formed?
(b) State whether the compound formed will conduct electricity or not.
(c) Give the formula of the compound formed.
(d) What is the valency of element X?
(e) How many electrons are there in the outermost shell of an atom of element Y?
Write the names and symbols of two very reactive metals belonging to group 1 of the periodic table. Explain by drawing electronic structure, how either one of the two metals reacts with a halogen. With which name is the bond formed between these elements known and what is the class of the compound so formed known? State any four physical properties of such compounds.
Two elements X and Y belong to group 1 and 2 respectively in the same period of periodic table. Compare them with respect to:
(i) the number of valence electrons in their atoms
(ii) their valencies
(iii) metallic character
(iv) the sizes of their atoms
(v) the formulae of their oxides
(vi) the formulae of their chlorides
Alkaline earth metals have valency 2. This means that their position in the modern periodic table is in ______.
How did the early chemists classify elements?
Elements belonging to the same group have the same valency.
Which type of elements are poor conductors of heat and electricity?
Relate the names of the following scientists with the statements given below.
Arranged elements in a group of seven with increasing atomic masses and eighth elements with similar properties kept below the first like eight note in an act of music.
Identify the following:
An element in Period 1 which can be placed in both Group 1 and Group 17 of the Periodic Table.
