Question

ᴩʟᴇᴀꜱᴇ qɴꜱᴡᴇʀ ᴛʜɪꜱ qᴜᴇꜱ...

=>ᴡʜᴀᴛ ɪꜱ ʀᴇᴀᴄᴛɪᴠᴏᴛy ꜱᴇʀɪᴇꜱ ᴏꜰ ᴍᴇᴛᴀʟꜱ.ꜱʜᴏᴡ ᴛʜᴇ ᴩᴏꜱɪᴛɪᴏɴ ᴏꜰ ᴠᴀʀɪᴏᴜꜱ ᴍᴇᴛᴀʟꜱ ɪɴ ꜱᴜᴄʜ ꜱᴇʀɪᴇꜱ.​​

ᴛʜᴀɴᴋꜱ​

Answer 1

ㅤRefer the attachment for the position..

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• In chemistry, a reactivity series (or activity series) is an empirical, calculated, and structurally analytical progression of a series of metals, arranged by their "reactivity" from highest to lowest.

Answer 2

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Radioactive series, any of four independent sets of unstable heavy atomic nuclei that decay through a sequence of alpha and beta decays until a stable nucleus is achieved. ... By 1935 these three radioactive series had been fully delineated.