Name the two sub-atomic particles in the nucleus of an aluminium atom.
Answers
The two sub-atomic particles present in the nucleus of an aluminum (Al) atom are: proton and neutrons.
Protons: Positively charged protons are present in the atom's nucleus. They have an approximate relative mass of 1 atomic mass unit (amu), a relative charge of 1, and a relative mass of 1.
Neutrons: The nucleus of an atom contains neutrons, which are neutral particles. They have a relative mass of roughly 1 atomic mass unit (amu) and no electric charge (their charge is zero).
The number of protons in an aluminum atom determines its atomic number, which is 13, and the number of neutrons can vary, resulting in various aluminum isotopes with various masses. Aluminum-27, which has a nucleus made up of 13 protons and 14 neutrons, is the most prevalent isotope of the metal.
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Related Questions
What subatomic particle of the atom has no electric charge
Which best describes thermal energy?A.It is the difference between internal energies of two or more substances.B.It is the sum of internal energies of two or more substances.C.It is the portion of internal energy that can be transferred from one substance to another.D.It is the portion of potential energy that can be transferred from one substance to another.
The modern atomic model is also sometimes called the __________ model.a. solar system b. Bohr c. plum pudding d. quantum mechanics
How do you decide whether an observed property of matter is a physical or a chemical property?
an idea that has been changed due to new information
O a general agreement among scientists about a scientific idea
the understanding that knowledge in a particular area can be uncertain
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The scientific consensus is a general agreement among scientists about a scientific idea. The correct option is C.
What is a scientific idea?
A scientific idea is the explanation or facts of science. It reveals the truth about the world. How the world works and the secrets of nature. It tells and gathers true information about the world.
The different aspects of life and the world are understood and studied by scientists. Different scientists work for different forms of life. The scientist's ideas change over the different evidence.
The generalized ideas of various scientists give and agree upon the different theories of the levels of science. The publication process and specialized field.
Thus, the correct option is C. a general agreement among scientists about a scientific idea.
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Answer:
it's C
Explanation:
got it right on EDG 2021
(2) carbon (4) silver
Answers
Answer: The correct answer is option(4).
Explanation:
Malleability : It is a property of a material that under the pressure they can be drawn into thin sheets.
Conducting: It is a property of a material to allow electric current to easily pass through it.
Since both the above properties are of metals. And from the enlisted elements only one element is metal that is 'silver'.
So, the correct answer is option(4).
is the element that is malleable and a good conductor of electricity at STP.
Further Explanation:
The representation of all the elements in their increasing atomic numbers is known as the periodic table. Such a representation is done in the form of a table having horizontal rows called periods and vertical columns called groups.
Malleability is the property of substance due to which it can be deformed by applying pressure. The malleable materials can be drawn into thin sheets by the process of rolling or hammering. Metals are malleable in nature because these have the tendency to get deformed under pressure.
Any substance that allows the flow of electric charges through it is said to be a conductor. Conductivity is defined as the property of any conductor to permit the flow of charges through it. Metals are good conductors of heat and electricity due to the presence of free electrons in them. Such electrons act as charge carriers.
Both malleability and conductivity are the properties of metals. Since silver exists as a metal at STP, it is malleable and a good conductor of electricity. But carbon, argon and iodine are non-metals at STP so these cannot exhibit any of the mentioned properties. Therefore option (4) is correct.
Learn more:
- Which property do metalloids share with nonmetals? brainly.com/question/802690
- Which properties are characteristic of group 2 elements? brainly.com/question/8226316
Answer details:
Grade: High School
Chapter: Periodic classification of elements
Subject: Chemistry
Keywords: element, silver, carbon, iodine, argon, conductor, periodic table, metal, non-metals, malleability, electricity, electrons, charge carriers.
Sandpaper is scratchy
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Answer:
The patient requires a dose of 107.2 mg of gentamicin
Explanation:
A dosage of 1.75 mg per Kilogram body weight results in blood serum levels of 4.5 mcg/mL
This means that; 1.75 mg/ kg = 4.0 mcg/mL
Therefore, dosage of gentamicin in mg/kg that will result in 4.5 mcg/mL blood serum level = (1.75 mg/Kg * 4.5 mcg/mL) / 4.0 mcg/mL
Dosageof gentamicin = 1.97 mg/Kg
1-lb = 0.453592 Kg
Weight of 120-lb patient in Kg = 120 * 0.453592 = 54.43 Kg
Dose in mg required by patient = 1.97 mg/Kg * 54.43 Kg = 107.2 mg
Therefore, the 120-lb patient requires a dose of 107.2 mg of gentamicin to result in a blood serum level of 4.5 mcg/mL
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A solution base differs from a solution of an acid in that the solution of a base has lesser hydrogen ion concentration than the solution of an acid. It is known that acids compounds contains hydrogen and produces hydrogen ion in water. A binary acid however is an acid that have two elements, one of the element has a hydrogen attached to it. Examples of binary acids are hydrogen fluoride (HF), hydrogen bromide (HBr) and hydrogen sulfide (H2S). In naming a binary acid, it has two rules; one, as pure compounds and two, as acid solutions.