Answer:
A. False
B. False
C. True
Explanation:
<em>A. The three quantum numbers (n, l, and ml) define an atomic orbital. If n, the principal quantum number, has a value of 6 the maximum value of l is 6.</em> FALSE. The first part is true. However, the maximum value of l is n-1. So, if n is 6, l can take values up to 5.
<em>B. The principal quantum number, n, can have any integer value from 0 to infinity. For electrons in s, p, and d orbitals, the d electrons are the most shielded.</em> FALSE. n can take positive integer values, that is, it cannot take the value 0. Usually, the d electrons are the most shielded.
<em>C. The magnetic quantum number, ml indicates the orientation of the orbital in the space around the nucleus.</em> TRUE. For instance, spheric s orbital has only 1 orientation (1 value for ml), whereas lobed p orbital can be oriented along the three axes (3 values for ml).
The statement that "substance A is rice, and substance B is sugar" is correct.
WHAT IS A MIXTURE?
- A mixture in chemistry is a substance that contains two or more different substances.
- One notable characteristics of a mixture is that it can easily be separated using physical means.
According to this question, a mixture contains two substances A and B. Water is added to this mixture for easy separation.
- Substance A is filtered out. This means that substance A is a solid that is insoluble in water. This substance is RICE.
- The remaining liquid is heated to remove the water content leaving a residue of substance B. This shows that substance B is also a solid but soluble in water. SUGAR best fits this description.
Therefore, in the mixture of two substances A and B, substance A is rice, and substance B is sugar.
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Since there aren't grams and just moles, the theoretical yield is one whole mole. If the molar mass is <span>142.04 g/mol, that is your answer. Hope I helped!</span>
Answer:be careful and relax
Explanation:
The element's Atomic number , which has 5 protons, 6 neutrons, and 2 electrons (the atomic number is the number of protons) = 5
<h3>What in an atomic number?</h3>
the number assigned to a chemical element according to its atomic number in the periodic system, which places the elements in ascending order of the number of protons in their nuclei. As a result, the atomic number is also the number of protons, which in a neutral atom is always equal to the amount of electrons.
<h3>Briefing:</h3>
Protons and neutrons are added to determine an element's mass number. The only number that may change while maintaining the identity of an element is the number of neutrons for that element (because the atomic number is the number of protons).
Mass number = protons + neutrons
<h3>According to the given data;</h3>
Given:
5 protons,
6 neutrons
2 electrons
Atomic number = ?
We know that the Mass number = protons + neutrons:
Mass number = protons + neutrons
Mass number = 5 + 6:
Mass number = 11
The element's Atomic number , which has 5 protons, 6 neutrons, and 2 electrons (the atomic number is the number of protons) = 5.
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