In the modern periodic table, which of the two periods contain 8 elements each?
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Except Helium, all noble gases have how many electrons in the outermost shell?
Choose the one which is different or odd from the following.
In the Modern Periodic Table elements present in the same period will have the same
Which of the following metals is the most Malleable?
What is the pH value of human blood?
In a water molecule, the ratio of mass of Hydrogen to the mass of Oxygen is always:
Which of the following is NOT a property of acids?
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