Chemistry, 19.07.2019 09:30 t0ri21

Question 27 (multiple answer) which of the following elements' atoms is likely to form an anion? (select all that apply.) hint: look at your periodic table. a)selenium b)chlorine c)magnesium d) phosphorus

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These elements would be A, B, and D.

All elements want to obtain the stable octet, or eight electrons in the outermost electron shell. Those elements with only one or two electrons in their outer shell find it easier to donate them away to reach the octet in a lower shell than to add a bunch on, while other elements that are a couple of electrons short find it easier to adopt some. Adding electrons to an atom makes it an anion, so those prone to accept electrons would be the ones to be anions, and these are the right side of the periodic table.

Selenium is two electrons short of the octet, Chlorine is one, and Phosphorus is three, which means that they can accept electrons to complete the octet, rather than donating six, seven, and five electrons, respectively. Magnesium, however, has two too many electrons, so it would be easier to donate two, rather than accept six. In doing so, it becomes a cation, or a positive ion.

Answer from: Quest

hi my dude or dudette

Answer from: Quest

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.

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Question 27 (multiple answer) which of the following elements' atoms is likely to form an anion? (...

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