I think it’s D because They are not strongly held by the nucleus, hence are readily released. And readily released electrons means higher reactivity. Easy on the alkaline earth metals.
Answer from: Quest
chemical properties are the characteristic of matter which can only be observed by changing the chemical identity of a sample like flammability reactivity and toxicity.
What is conserved in the reaction shown below? h2(g) + cl2 (g) --> 2hcl(g)a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume
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