chemical elements by classification
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Halogens are what? | Toxic and non-metallic
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| 9 F | Fluorine
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| Fluorine is named after what? | The latin word fluo, which means flow
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| Who discovered Fluorine? | Joseph Moissan in 1886
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| What is Fluorine's boiling point? | -306.625 F
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| What color is Fluorine? | pale yellow (highly toxic gas)
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| Fluorine is the most ______ element, so it is extremely reactive | electronegative
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| Fluorine was a proposed element in what year? | 1810, but could not be separated from compounds until 1886
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| 17 Cl | Chlorine
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| Chlorine is named from the greek chloros, meaning what? | pale green
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| Chlorine is what color in its gas state? | yellow-green
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| What is chlorine's boiling point? | -29.27 F
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| Chlorine has the highest electron affinity and has the _____(number) highest electronegativity | 3rd highest
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| Who discovered Chlorine? | Sir Humphry Davy in 1810 (confirmed status)
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| Who wrote the original description of Chlorine? | Carl Schede in 1774
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| 35 Br | Bromine
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| Bromine's name was derived from Greek for what? | stench
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| Bromine has an intense what? | smell
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| What is bromine's boiling point? | 137.8 F
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| What is bromine used for? | Fire retardants and photographic film
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| Elemental bromine is very reactive and does or does not occur free in nature? | Does not occur free in nature
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| 53 I | Iodine
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| Iodine is named for the greek word for what? | violet
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| Who discovered Iodine? | Bernard Courtois in 1811
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| What is iodine's boiling point? | 363.7 F
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| Iodine is found in what gland's hormones? | thyroid
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| Deficiency in iodine can cause what? | Intellectual disabilities
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| Radioactive isotopes of iodine can be used to treat what type of cancer? | thyroid cancer
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| 85 At | Astatine
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| Astatine is named for the greek word for what? | unstable
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| Astatine is what? | radioactive
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| Who discovered astatine? | Dale Corson, Kenneth MacKenzie, and Emilio Segre in 1940
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| Astatine's appearance is what? | unknown
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| Astatine has an extremely short what? | half-life (8.1 hours)
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| Astatine decays into what elements? | Bismuth, polonium, or radon
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| What is Astatine's boiling point? | 639 F
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| 117 Ts | Tennessine
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| What is Tennessine named after? | the state it was discovered (Tennessee)
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| Tennessine is the ___ heaviest known element? | 2nd heaviest
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| Tennessine is produced how? | synthetically
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| Tennessine is the most recently discovered element as of what year? | 2017
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| Tennessine is suspected to be what classification of element? | Halogen
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| Tennessine was originally a proposed element with what name and symbol? | Ununseptium (Uus)
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