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Alik [6]
3 years ago
7

Elements are arranged in groups by similar atomic structure on the periodic table. This allows for an element's properties to be

predicted based on general periodic trends. One of these trends, energy levels, increase ___________.
A) down a group
B) down a group and to the left along a period
C) up a group and to the right along a period
D) up a group and to the left along a period
Chemistry
1 answer:
sergey [27]3 years ago
6 0
The answer is C because of the ionization energy trend
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Can someone good with chemistry help me?
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So the order would be NF3, NBr3, NI3.

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What is the empirical formula of Fe?
Lera25 [3.4K]

Answer:

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Zero because there are so many electrons as protons.
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