Question
According to the octet rule, which group of elements
tends to gain electrons to achieve a stable electron configuration?Solution
Halogens, such as chlorine and fluorine, have 7 valence electrons and tend to gain one electron to achieve a stable octet.
What is the SI unit for measuring speed?
Which pioneer scientist used radio waves to transmit signals over distances of several kilometres in the 1890s?
Which of the following physical quantities is scalar quantity ?
‘Therm' is the unit of –
What is the speed of light in air?
How is the slope of the production possibility curve (PPC) described?
The SI unit of Pressure is
The splitting up of white light into seven colours on passing through a glass prism is called as
Which of the following is the best fire-extinguisher?
Which of the following is the time taken for one complete oscillation of a sound wave in the density of the medium?
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