Advertisements
Advertisements
प्रश्न
Name two elements that you would expect to show chemical reactions similar to calcium. What is the basis of your choice?
Advertisements
उत्तर
Two elements, magnesium (Mg) and barium (Ba), undergo chemical reactions that are comparable to those of calcium because all three elements have two electrons in their outermost shell and are members of group II-A.
संबंधित प्रश्न
What is the number of valence electrons in the atoms of first elements in a period?
Define:
Periodic table
Name the type of elements which have two outermost shell incomplete.
From the standpoint of atomic structure, what determines which elements will be the first and which the last in a period of the periodic table?
What is the number of elements in the 1st period?
Name an element of group 18 which can form compounds.
In the Modern Periodic Table – atoms of all elements are arranged according to their increasing order of – atomic numbers. An atom of nitrogen has seven protons and seven electrons. State what would be its atomic number.
The element with atomic number 14 is hard and forms acidic oxide and a covalent halide. To which of the following categories does the element belong?
The inert gas which lies in the third period is ______
Which of the following elements would lose an electron easily?
