QQuestion
Why are the elements of group 2 of the long periodic table called alkaline earth metals? [2]
OR
Give example of a transitional element and a transuranic element. [2]
✓Answer
The elements of Group 2 in the long periodic table are called alkaline earth metals because:
- Their oxides and hydroxides are alkaline (basic) in nature, meaning they can neutralize acids.
- These metals are found in the earth’s crust as compounds, hence the term “earth” metals.
OR
An example of a transitional element is iron (Fe), and an example of a transuranic element is plutonium (Pu).
Related Questions
More WBBSE Easy level questions
Mention similarity of properties of hydrogen with two properties of group 17 elements of long periodic table.
From which group to group 12 of the long periodic table are the transitional elements located?
The first three elements of group 16 of long periodic table are O, S, and Se. Arrange them in the order of decreasing atomic radius, increasing electro-negativity and decreasing ionization energy. [1 + 1 + 1]
In which group of the long periodic table, elements of all three physical states - gaseous, liquid and solid are present? [1] OR To which group of the long periodic table do the alkali metals belong? [1]
Arrange F, I, Br, CI in decreasing order of electronegativity
Match the Right column with the Left column : [1 × 4 = 4] Left Column Right Column 2.11.1 Acetic acid (a) non-conductor of electricity 2.11.2 Glass (b) Weak electrolyte 2.11.3 Most electro-negative element (c) Krypton 2.11.4 One Noble Element (d) Fluorine
Number of groups in the long periodic table is (a) 9 (b) 13 (c) 18 (d) 19
What is meant by ionisation energy of an atom of an element? Arrange Na, Rb, Li and Cs in the increasing order of their ionisation energy. OR The atomic numbers of the elements ‘A’, ‘B’ and ‘C’ are (n-2), n, (n+1) respectively, ‘B’ is an inert gas. In which group of the Periodic Table are ‘A’ and ‘C’ located? Which one among them has the highest reductive power? What is the formula of the compound produced by combining ‘A’ and ‘C’?
Match the right column with the left column: Left Column Right Column 2.11.1. Noble Gas (a) Cs 2.11.2. Inver (b) Rn 2.11.3. Least electronegative element (c) Reduction with carbon 2.11.4. ZnO + C → Zn + CO (d) An alloy
If the elements are arranged in ascending order of their electropositivity, then choose the correct order (a) C < N < 0 < F (b) C > N > 0 > F (c) O < N < C < F (d) F > C > O > N
Match the Right column with the Left column: [1 × 4] Left column Right column 2.11.1. An alkaline earth metal (a) Fe 2.11.2. The metal which is present in the highest percentage amount in the alloy invar (b) Zn 2.11.3. An alkali metal (c) Ca 2.11.4. The metal which is given as coating to prevent the rusting of iron (d) K
How many elements are there in the fourth period of long periodic table? 8 32 16 18