icse-class-7 · Science

Practice — Chemistry — Matter, Atomic Structure, Language of Chemistry & Metals

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Question 1 of 1
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MEDIUM2 marks
An element has atomic number 17 and mass number 35. (a) Name the element. (b) State the number of protons, neutrons, and electrons. (c) Write its electronic configuration. (d) Write the formula for its compound with sodium.
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