11 Questions
What is the electron configuration of the element with 10 electrons?
1s2 2s1 2p6
How many valence electrons does an atom with the electron configuration 1s2 2s2 2p6 have?
8
In which energy state would an electron configuration of 1s1 2s2 2p6 be considered?
Ground state
Which of the following best describes isotopes?
Atoms of the same element with different numbers of neutrons
In Tritium (3 1 H), how many protons, neutrons, and electrons are present, respectively?
1, 2, 3
Which ion is formed when Uranium loses two electrons?
U2+
What does the term 'ion' refer to?
An atom or a group of atoms that lose or gain electrons to form a charge
What is the mass number of an atom?
The total number of protons and neutrons in the nucleus
How is the atomic number represented in the symbol of an element in the periodic table?
As a subscript before the symbol
What is the relationship between the mass number and the atomic number of an atom?
Mass number is greater than atomic number
Which subatomic particle is not found in the nucleus of an atom?
Electron
Test your knowledge of isotopes and atomic structure with this quiz. Identify the number of protons, neutrons, and electrons in different isotopic species of elements.
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