Answer:
Sorry for the late answer, but it should be A. Carbon's outermost shell can form up to 4 covalent bonds. It's one of the reasons why Carbon is considered an "essential element".
Answer:
The atomic radius gets smaller the farther right it appears on the
periodic table.
Explanation:
Number of protons is increasing across the period so electrostatic attraction between the positive nucleus and the valence electrons increases and electrons are drawn close to the positive nucleus. This increases nuclear charge and so atomic radii gets smaller.
Also, the atomic radii size also depend on Electron - electron repulsion and shielding of the outermost valence electrons by the inner-most energy levels for the positive nucleus and number of energy levels.
Across the period, the electron-electron repulsion does not increase but there is increasing nuclear charge. The valence electrons are added to same energy level so electron shielding of the positive nucleus by the inner electrons is the same across the period.
Answer:
(0.085 cm) + (0.062 cm) + (0.14 cm) =
0.287 centimeters
b. atomic radius
as it goes increases when it goes down the periodic table, it decreases when going left to right. all the others decrease while going down the table.
if it helps you to remember, everything here besides atomic radius has an e in it. and if you make a connection with it to electrons, they are negative, which means they would decrease going down the table. so e=decrease while going down
thats what helped me remember it, so i hope this technique could help you too.
Answer:
A dilute acid is when the concentration of water mixed in the acid is <em>higher</em> than the concentration of the acid itself. For example, 5% sulfuric acid is a dilute acid.
A concentrated acid is an acid that is in either <em>pure </em>form or has a <em>high </em>concentration.
Hope this helps! :)
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