Practice question
Question
Which of the following elements is a halogen?
Explanation
Halogens belong to group 17. Among O, S, Se, and Br, only Br is in group 17, making it a halogen.
Related blogs
Guides and insights connected to this topic
Periodic Classification of Elements Notes - Dobereiner Triads, Newlands Octaves, Mendeleev and Modern Periodic Table
Explore early attempts to classify elements, covering Dobereiner’s triads, Newlands’ law of octaves and Mendeleev’s table with examples and key details.
Mineral Nutrition Biology Notes - Hydroponics, Essential Elements, Deficiency Symptoms, Nitrogen Cycle and Biological Nitrogen Fixation
Explore plant mineral nutrition notes on hydroponics, criteria for essential elements, deficiency symptoms, and biological nitrogen fixation...
Experiment 16: Flash Cards / Models / Specimens Showing Examples of Homologous and Analogous Organs
AIM To study homology and analogy with the help of models/charts of animals and models/charts/specimens of plants. PRINCIPLE Homologous organs are functionally dissimilar but anatomically or structurally similar. Different modes of life have modified the organs to enable survival...
Discussion
Comments
Please log in to join the discussion.
Login to commentNo comments yet. Be the first to start the discussion.