The compound Mn3(PO4)2 is correctly named as manganese(II) phosphate, based on the rule of naming ionic compounds and considering the oxidation state of the manganese ion.
The correct name of the compound Mn3(PO4)2 is manganese(II) phosphate. This is based on the rule of naming ionic compounds. With ionic compounds, the metal cation's oxidation state is represented in Roman numerals in parentheses if the metal can have more than one charge state.
In this case, the Mn3+ cation in Mn3(PO4)2 has an oxidation state of +2 since the phosphate ions PO4^3- balance out 3 Mn ions. Therefore, the compound is correctly named manganese(II) phosphate.
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B. 2
C. 4
D. 6
(2) beta particle (4) positron
Answer: Gamma ray
Explanation: Nuclear Emission explains the release of energy stored in the nucleus of an atom in the form of particles like alpha particles, beta particles, gamma ray etc.
Alpha particles are the helium atom having +2 charge.
Beta particles have -1 charge thus beta particle and the electron are same.
Positron has a charge of +1 electron having 1/2 spin.
Gamma rays are the rays which are neutral and have no mass.
A gamma ray is a nuclear emission that has no charge and no mass.
Nuclear radiation refers to the emission of particles or electromagnetic waves from atomic nuclei undergoing decay. Types include alpha, beta, and gamma radiation, each with varying properties and effects. It is a fundamental concept in nuclear physics and has applications in medicine, energy production, and weaponry.
The nuclear emission that has no charge and no mass is the gamma ray. Unlike the other options listed, which are particles, gamma rays are electromagnetic radiation and do not have mass or charge. They are highly penetrating and can pass through many materials without being deflected.
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Atoms of different elements are different based on the number of protons they have in their nucleus. This number, known as the atomic number, is unique to each element and defines its identity.
The modern atomic theory states that atoms of one element are the same, while atoms of different elements are different. What makes atoms of different elements different? The fundamental characteristic that all atoms of the same element share is the number of protons.
All atoms of hydrogen have one and only one proton in the nucleus; all atoms of iron have 26 protons in the nucleus. This number of protons is so important to the identity of an atom that it is called the atomic number (Z).
The number of protons in an atom is the atomic number of the element. Thus, hydrogen has an atomic number of 1, while iron has an atomic number of 26. Each element has its own characteristic atomic number.
Answer:
the first one
Explanation:
The total number of atoms in 1.3 x 10^22 molecules of N(O)2 is 3.9 x 10^22 atoms since each molecule of N(O)2 consists of three atoms.
To answer the question of how many atoms there are in 1.3 x 10^22 molecules of N(O)2, one must be aware of the molecular composition of N(O)2. This molecule contains one nitrogen atom and two oxygen atoms, thus comprising three atoms in total. Consequently, to determine the total number of atoms, multiply the number of molecules by the number of atoms per molecule. Hence, the answer is 1.3 x 10^22 molecules * 3 atoms/molecule = 3.9 x 10^22 atoms.
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B. gain
C. lose
D. cannot be determined
There are various kind of elements that are present in periodic table. Some elements are harmful, some are halogens, some are radioactive. Option B is correct option.
Periodic table is a table in which we find elements with properties like metals, non metals, metalloids and radioactive element arranges in increasing atomic number.
Periodic table help a scientist to know what are the different types of elements are present in periodic table so that they can discover the new elements that are not being discovered yet.
Group 7A elements includes halogens elements like Fluorine, Chlorine, Bromine and iodine, whose electronegativity is very high in whole periodic table. These element gain electron very easily.
Therefore, the correct option is option B.
Learn more about periodic table, here:
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