Answer
Verified
389.1k+ views
Hint: Group IB consists of elements Copper (Cu), Silver (Ag), Gold (Au) and Roentgenium (Rg)
Complete step by step answer:
A group is a vertical column of the periodic table which is based on the organization of the outer shell electrons.
Group IB occupies the middle of the periodic table between Group IIA and Group IIIA. It consists of 4 elements namely Copper (Cu), Silver (Ag), Gold (Au) and Roentgenium (Rg). They are also known as ‘Coinage metals.
Therefore, the correct answer is option (A).
Note: Copper is a reddish and a lustrous metal. It is malleable, ductile and a good conductor of heat and electricity. Silver occurs in ores such as argentite and horn silver. It has brilliant white metallic luster. It is harder than gold and is very ductile, malleable. It has the highest thermal conductivity of all metals. It is stable in pure air and water. Gold occurs in veins and alluvial deposits and is separated from rocks often. It is used in coinage and it is a standard for monetary systems in many countries. Gold in its pure state is metallic having a yellow color. It is a good conductor of heat and electricity. Roentgenium was discovered in 1994. This name given to the element was proposed by the GSI team in honor of the German physicist, Wilhelm Conrad Rontgen.
Group 1B elements are more stable than the Group 1A elements because of higher ionization energies resulting from incomplete shielding of the nucleus by the inner d electrons, Consequently, the outer s electrons of the Group 1B elements are more strongly attracted by the nucleus.
Complete step by step answer:
A group is a vertical column of the periodic table which is based on the organization of the outer shell electrons.
Group IB occupies the middle of the periodic table between Group IIA and Group IIIA. It consists of 4 elements namely Copper (Cu), Silver (Ag), Gold (Au) and Roentgenium (Rg). They are also known as ‘Coinage metals.
Therefore, the correct answer is option (A).
Note: Copper is a reddish and a lustrous metal. It is malleable, ductile and a good conductor of heat and electricity. Silver occurs in ores such as argentite and horn silver. It has brilliant white metallic luster. It is harder than gold and is very ductile, malleable. It has the highest thermal conductivity of all metals. It is stable in pure air and water. Gold occurs in veins and alluvial deposits and is separated from rocks often. It is used in coinage and it is a standard for monetary systems in many countries. Gold in its pure state is metallic having a yellow color. It is a good conductor of heat and electricity. Roentgenium was discovered in 1994. This name given to the element was proposed by the GSI team in honor of the German physicist, Wilhelm Conrad Rontgen.
Group 1B elements are more stable than the Group 1A elements because of higher ionization energies resulting from incomplete shielding of the nucleus by the inner d electrons, Consequently, the outer s electrons of the Group 1B elements are more strongly attracted by the nucleus.
Recently Updated Pages
Basicity of sulphurous acid and sulphuric acid are
Three beakers labelled as A B and C each containing 25 mL of water were taken A small amount of NaOH anhydrous CuSO4 and NaCl were added to the beakers A B and C respectively It was observed that there was an increase in the temperature of the solutions contained in beakers A and B whereas in case of beaker C the temperature of the solution falls Which one of the following statements isarecorrect i In beakers A and B exothermic process has occurred ii In beakers A and B endothermic process has occurred iii In beaker C exothermic process has occurred iv In beaker C endothermic process has occurred
What is the stopping potential when the metal with class 12 physics JEE_Main
The momentum of a photon is 2 times 10 16gm cmsec Its class 12 physics JEE_Main
How do you arrange NH4 + BF3 H2O C2H2 in increasing class 11 chemistry CBSE
Is H mCT and q mCT the same thing If so which is more class 11 chemistry CBSE
Trending doubts
Difference Between Plant Cell and Animal Cell
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Fill the blanks with proper collective nouns 1 A of class 10 english CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Select the word that is correctly spelled a Twelveth class 10 english CBSE
What organs are located on the left side of your body class 11 biology CBSE
What is the z value for a 90 95 and 99 percent confidence class 11 maths CBSE
Give 10 examples for herbs , shrubs , climbers , creepers