The answer is P
You can count how many electrons in the picture
Or you can search for the one who has 3 electrons in the outer shell
It's a hazard symbol for irritant.
Answer:
Ionization energy tends to increase across a period because the nuclear pull is increasing while shielding is not changing because electrons are in the same energy level. Not only that as we move across a period elements are closer to a full octet.
Explanation:
Answer:
a) False
b) True
c) False
d) False
e) True
f) True
Explanation:
a) In thin layer chromatography, a polar organic compound will be repelled by the adsorbent and therefore travel not as far up the plate than a non-polar compound. FALSE. The adsorbent usually is a polar compound that will attract the polar organic compound.
b) In thin layer chromatography, a polar organic compound will be attracted by the adsorbent and therefore travel not as far up the plate as a non-polar compound. TRUE. The polar organic compound will be attracted by the adsorbent doing its travel not as far.
c) Sample spots should be approximately 1 cm in diameter. FALSE. Sample spots must be of 1-2 mm of diameter.
d) Covering the sample jar is done to prevent fingerprints on the slide. FALSE. The covering is doing to saturate the jar's air with solvent.
e) The Rf value will change if the adsorbent material is changed. TRUE. The travel of the compound depends of the retention that is made by the adsorbent material.
f) Thin layer chromatography is an example of adsorption chromatography, and not partition chromatography. TRUE. The mechanism of separation in thin-layer chromatography is differences of adsorption from different compounds.
Answer:
"Rad dude , love that queen"
Explanation: