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Biology X | CHAPTER – 6 | LIFE PROCESSES
CHAPTER – 6 LIFE PROCESSES How do we tell the difference between what is alive and what is not alive? If we see a dog running, or a cow chewing cud, or a man shouting loudly on the street, we know that these are living beings. What if the dog or the cow or the…
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Chemistry X | Periodic Classification of Elements | Trends in the Modern Periodic Table
Trends in the Modern Periodic Table Valency : As you know, the valency of an element is determined by the number of valence electrons present in the termost shell of its atom. Activity 5.6 How do you calculate the valency of an element from its electronic configuration? What is the valency of magnesium with atomic…