Question

Which alkali earth metals impart
Colour to the flame ?​

Answer 1

Answer:

ᴇxᴘᴇᴄᴛ ʙᴇ & ᴍɢ (ᴅᴜᴇ ᴛᴏ ʜɪɢʜ ɪᴏɴɪᴢᴀᴛɪᴏɴ ᴇɴᴇʀɢʏ), ᴛʜᴇ ᴀʟᴋᴀʟɪɴᴇ ᴇᴀʀᴛʜ ᴍᴇᴛᴀʟs ɪᴍᴘᴀʀᴛ ᴄʜᴀʀᴀᴄᴛᴇʀɪsᴛɪᴄ ᴄᴏʟᴏᴜʀ ᴡʜᴇɴ ɪɴᴛʀᴏᴅᴜᴄᴇᴅ ɪɴᴛᴏ ғʟᴀᴍᴇ ᴏғ ᴀ ʙᴜʀɴᴇʀ. ᴛʜɪs ᴘʀᴏᴘᴇʀᴛʏ ɪs ᴅᴜᴇ ᴛᴏ ᴛʜᴇ ᴇᴀsᴇ ᴏғ ᴇxᴄɪᴛᴀᴛɪᴏɴ ᴏғ ᴛʜᴇɪʀ ᴠᴀʟᴇɴᴄᴇ ᴇʟᴇᴄᴛʀᴏɴs.

Explanation:

ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs ʏᴏᴜ

Answer 2

Answer:

sodium, potassium,cesium ..

except Be and Mg..