Based on periodic trends, the most probable value for the ionic radius of K⁺ is 133 pm.
<h3>What are periodic trends?</h3>
Periodic trends are the observation which are seen in the chemical and physical elements found in the periodic table.
Periodic trends is based on the periodicity of elements.
Periodicity is the variation seen in the chemical and physical properties of the elements in the period table in a regular pattern, both down the groups and across the periods.
The periodic trends observed in metallic ions is that ionic radius of metallic ions increase down a group but decreases across a period.
Based on this periodic trend, the most likely size of the potassium ion, K⁺ is 133 pm.
In conclusion, the ionic radius of metallic ions increase down a group and decrease across a period.
Learn more about ionic radius at: brainly.com/question/19032815
#SPJ1
Answer : The unknown gas is, NO
Solution :
According to the Graham's law, the rate of effusion of gas is inversely proportional to the square root of the molar mass of gas.
or,
..........(1)
where,
= rate of effusion of unknown gas = 31.50 mL/min
= rate of effusion of gas = 30.50 mL/min
= molar mass of unknown gas = ?
= molar mass of gas = 32 g/mole
Now put all the given values in the above formula 1, we get:
From the this we conclude that the unknown gas is, NO that has 30.0 g/mol molar mass.
Hence, the unknown gas is, NO
P₂O₅ is an empirical formula
<h3>Further explanation</h3>
Given
compounds
Required
an empirical formula
Solution
The empirical formula is the smallest comparison of the atoms forming the compound.
Molecular formulas are formulas that show the number of atomic elements that make up a compound.
(empirical formula) n = molecular formula
1. P₂O₅ : the ratio of compounds cannot be further reduced to whole numbers⇒empirical formula
2. P₄O₆ : molecular formula
(P₂O₃)₂=P₄O₆
P₂O₃ : empirical formula
3.C₂H₄ : molecular formula
(CH₂)₂=C₂H₄
CH₂ : empirical formula
4. C₃H₆ : molecular formula
(CH₂)₃=C₃H₆
CH₂ : empirical formula
Answer:
you wont be able to ask any more questions until you answer some bc you get points from answering questions but you loose points when you ask them
Explanation:
Answer: d
Explanation:
Earth is larger than the moon, so Earth pulls on the moon