15 Questions
What does the atomic number (Z) represent?
The number of protons in an atom
What did Michael Faraday discover about ions?
Ions are formed when atoms lose or gain electrons
What is the relationship between the mass of an atom and the sum of the masses of its protons and neutrons?
The mass of an atom is equal to the sum of the masses of its protons and neutrons
What information is typically included in the atomic notation?
The symbol, atomic number, mass number, and charge of the element
What is the purpose of the two opposite electrodes placed in a solution by Michael Faraday?
To separate the elements in the dissolved compound
The mass number (A) of an atom represents the total number of ___ in the nucleus.
protons and neutrons
Which subatomic particle was discovered by James Chadwick in 1932?
Neutron
Ions are formed when an atom ___ one or more electrons.
either gains or loses
Which type of electromagnetic radiation has the highest energy and shortest wavelength?
Gamma rays
In the atomic notation $^{14}_{7}$N, the superscript represents the ___, and the subscript represents the ___.
mass number, atomic number
What are ANIONS?
Negatively charged ions with more electrons than protons
What are CATIONS?
Positively charged ions with more electrons than protons
How are ISOTOPES defined?
Atoms with the same number of protons but different number of neutrons
How are isotopes identified?
Through their mass number and element name
What is the charge on ANIONS?
Negative charge
Learn about atomic structure including the atomic number, mass number, and charge of elements. Explore the discovery of ions by Michael Faraday and how they form in a solution.
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