10 Questions
What are the smallest parts of an element that can take place in chemical reactions?
Atoms
What is the overall charge of the nucleus of an atom?
Positive
Where are the negatively charged electrons found in an atom?
In the orbitals around the nucleus
What is used to compare the masses and charges of subatomic particles?
Relative atomic masses and charges
How are the masses of protons and neutrons described?
Equal
What is the definition of redox reactions?
Reactions involving simultaneous oxidation and reduction
Which process involves the addition of oxygen?
CuO + H2
Which of the following represents a decrease in oxidation number?
N2 + H2 → NH3
What is the result of reduction?
Gain of electrons
Which equation represents the gain of electrons?
FeCl3 → FeCl2 + 1/2Cl2
Test your knowledge about the composition and structure of atoms, including the arrangement of protons, neutrons, and electrons within the atom.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
