Chemistry - Semmelweis entrance
exam practice prt 1 Exam With
Comprehensive Questions and Well
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Proton - correct ans:A subatomic particle that has a positive charge and that is found in the nucleus of
an atom. (1amu)
, Neutron - correct ans:A subatomic particle that has no charge and that is found in the nucleus of an
atom. (1amu)
Electron - correct ans:A subatomic particle that has a negative charge and is found around the nucleus in
orbitals. (1/1840 amu)
Atomin number - correct ans:Numbers of protons in the atoms nucleus, defines the element.
Mass number - correct ans:The total number of protons and neutrons in the nucleus of an atom.
Isotopes - correct ans:Atoms of the same element with the same number of protons but different
numbers of neutrons. (eg: H: Protium(0), Deutrium (1), tritium (2))
Relative atomic mass - correct ans:The weighted mean mass of an atom of an element relative to 1/12th
of the mass of an atom of carbon-12.
Atomic orbital - correct ans:The region in the atom where the probability of finding a certain electron is
larger than 90%.
Quantum theory - correct ans:Atoms have specific energy levels, and transitions between them involve
absorption or emission of definite energy amounts, described by quantum numbers.
Quantum numbers - correct ans:Quantum numbers are a set of numerical values that describe the
unique quantum state of an electron in an atom.
principal quantum number (n=1,2,3,4,...) - correct ans:Energy level and relative size of the orbital.
Azimuthal quantum number (l=0,1,2,3..n-1) - correct ans:Shape of the orbital (s, p, d, f)
Magnetic quantum number - correct ans:indicates the orientation of an orbital around the nucleus.
exam practice prt 1 Exam With
Comprehensive Questions and Well
Elaborated Correct Answers GRADED
A+
Professional Academic Assistance Services
Services Offered
Proctored Exam Assistance
Online Class Management (Full Course Support)
Exam Preparation & Study Materials
Assignments and Coursework Support
Essays and Research Papers
Discussion Posts and Replies
Proton - correct ans:A subatomic particle that has a positive charge and that is found in the nucleus of
an atom. (1amu)
, Neutron - correct ans:A subatomic particle that has no charge and that is found in the nucleus of an
atom. (1amu)
Electron - correct ans:A subatomic particle that has a negative charge and is found around the nucleus in
orbitals. (1/1840 amu)
Atomin number - correct ans:Numbers of protons in the atoms nucleus, defines the element.
Mass number - correct ans:The total number of protons and neutrons in the nucleus of an atom.
Isotopes - correct ans:Atoms of the same element with the same number of protons but different
numbers of neutrons. (eg: H: Protium(0), Deutrium (1), tritium (2))
Relative atomic mass - correct ans:The weighted mean mass of an atom of an element relative to 1/12th
of the mass of an atom of carbon-12.
Atomic orbital - correct ans:The region in the atom where the probability of finding a certain electron is
larger than 90%.
Quantum theory - correct ans:Atoms have specific energy levels, and transitions between them involve
absorption or emission of definite energy amounts, described by quantum numbers.
Quantum numbers - correct ans:Quantum numbers are a set of numerical values that describe the
unique quantum state of an electron in an atom.
principal quantum number (n=1,2,3,4,...) - correct ans:Energy level and relative size of the orbital.
Azimuthal quantum number (l=0,1,2,3..n-1) - correct ans:Shape of the orbital (s, p, d, f)
Magnetic quantum number - correct ans:indicates the orientation of an orbital around the nucleus.
