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The principal atomic number, often referred to as the atomic number, is the number of protons in the nucleus of an atom. It uniquely identifies an element and determines its position on the Periodic Table. For instance, hydrogen has an atomic number of 1, while carbon has an atomic number of 6. This number also equals the number of electrons in a neutral atom, influencing its chemical behavior.
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The principal quantum number for the outermost electrons in a Ca atom in the ground state is .?
The principal quantum number for the outermost electrons in a calcium (Ca) atom in the ground state is 4. This is because calcium has an atomic number of 20, and its electron configuration is [Ar] 4s², indicating that the outermost electrons are in the 4s subshell.
What number indicates the energy level of an atom's valence electrons?
The energy level of an atom's valence electrons is indicated by the principal quantum number, denoted as ( n ). This number can range from 1 to higher integers, with each successive number corresponding to a higher energy level and distance from the nucleus. For example, the valence electrons in the outermost shell of an atom with a principal quantum number of 3 would be in the third energy level.
What is the characteristics and nature of atoms?
Atoms are indestructible by chemical methods; a principal characteristic of an atom is the number of protons.
What is the value of the quantum number n for a spin up electron in a 2p orbital?
The quantum number ( n ) represents the principal quantum number, which indicates the energy level of an electron in an atom. For a 2p orbital, the principal quantum number ( n ) is 2. This means that the electron is in the second energy level of the atom, regardless of its spin state (spin up or spin down).
What quantum number of the hydrogen atom comes closest to giving a 31--diameter electron orbit?
The quantum number that determines the size of an electron's orbit in a hydrogen atom is the principal quantum number, denoted by "n." For an electron orbit with a 31 Å diameter, the closest principal quantum number would be n = 4, because the average radius of the electron for an orbit corresponding to n is approximately given by n^2 Å in hydrogen atom.
How many radial nodes are present in the electron cloud of an atom with a principal quantum number of 3?
An atom with a principal quantum number of 3 has 2 radial nodes in its electron cloud.
What is the principal quantum number for the outermost electrons in a bromine atom in the ground state?
The electronic configuration of Bromine in its ground state is: 1s2 2s2p6 3s2p6d10 4s2p5. Therefore the principal quantum number for the outermost electrons in a Bromine atom is 4.
Which number indicates the energy level of an atom's valence electrons?
Period number(: Apex
The number of sublevels within each energy level of an atom is equal to the value of the?
The number of sublevels within each energy level of an atom is equal to the value of the principal quantum number (n). Each principal quantum number corresponds to one sublevel within the energy level.
What is the number of the principal energy level in which of the valence electrons are found?
The principal energy level is represented by the main energy level number (n). The valence electrons are the electrons found in the outermost energy level of an atom, which corresponds to the highest principal energy level (n).
What is the one thing that determines the identity of an atom?
the one thing that gives an atom its identity is the mass number and the atomic number
The principal quantum number for the outermost electrons in a Ca atom in the ground state is .?
The principal quantum number for the outermost electrons in a calcium (Ca) atom in the ground state is 4. This is because calcium has an atomic number of 20, and its electron configuration is [Ar] 4s², indicating that the outermost electrons are in the 4s subshell.
What number indicates the energy level of an atom's valence electrons?
The energy level of an atom's valence electrons is indicated by the principal quantum number, denoted as ( n ). This number can range from 1 to higher integers, with each successive number corresponding to a higher energy level and distance from the nucleus. For example, the valence electrons in the outermost shell of an atom with a principal quantum number of 3 would be in the third energy level.
What is the characteristics and nature of atoms?
Atoms are indestructible by chemical methods; a principal characteristic of an atom is the number of protons.
What is the value of the quantum number n for a spin up electron in a 2p orbital?
The quantum number ( n ) represents the principal quantum number, which indicates the energy level of an electron in an atom. For a 2p orbital, the principal quantum number ( n ) is 2. This means that the electron is in the second energy level of the atom, regardless of its spin state (spin up or spin down).
The principal quantum number for the outermost electrons in a Bromine atom in the ground state is?
The principal quantum number for the outermost electrons in a Bromine atom in the ground state is 4. This is because the outermost electrons of an atom are located in the highest energy level, and for Bromine (with 35 electrons), the outermost electrons are in the 4th energy level.
What quantum number of the hydrogen atom comes closest to giving a 31--diameter electron orbit?
The quantum number that determines the size of an electron's orbit in a hydrogen atom is the principal quantum number, denoted by "n." For an electron orbit with a 31 Å diameter, the closest principal quantum number would be n = 4, because the average radius of the electron for an orbit corresponding to n is approximately given by n^2 Å in hydrogen atom.
