12 Questions
What term is used to describe nuclei with the same number of neutrons and protons?
Nuclides
What is the function of the nuclear force within the nucleus?
Supply attraction to overcome electrical repulsion
Which type of radiation is emitted by unstable atoms as they tend to break apart to attain stability?
Alpha radiation
What is the term for elements that emit either electrons or positrons to attain stability?
Radioactive elements
What is emitted in gamma decay?
High-energy electromagnetic radiations
Which term is used for nuclei that do not emit any radiations?
'Stable nuclei'
What does the nucleon number, A, represent?
Number of protons plus neutrons in the nucleus
Which symbol is used to represent the chemical symbol for an element in nuclear notation?
X
If an element has an atomic number of 7 and a nucleon number of 15, how many neutrons does it have?
8
What is the charge number in an atom?
Number of protons
Why is it said that the subscript Z is sometimes dropped in nuclear notation?
To simplify writing chemical symbols
In a neutral atom, what is equal to the number of protons in the nucleus?
Number of electrons
Learn about key concepts related to atomic structure, including atomic number (Z), nucleon number (A), and neutron number (N). Understand how these components define the composition of a nucleus and how they are represented in nuclear notation.
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