gaining and losing electrons Flashcards
(22 cards)
What is the process of losing electrons called?
Oxidation
What is the process of gaining electrons called?
Reduction
True or False: An atom that loses electrons becomes positively charged.
True
True or False: An atom that gains electrons becomes negatively charged.
True
Fill in the blank: An ion formed by losing electrons is called a _______.
Cation
Fill in the blank: An ion formed by gaining electrons is called an _______.
Anion
Which of the following elements is most likely to gain electrons: A) Sodium B) Chlorine C) Magnesium?
B) Chlorine
Which of the following involves the transfer of electrons: A) Ionic bonding B) Covalent bonding?
A) Ionic bonding
What is the charge of a cation?
Positive
What is the charge of an anion?
Negative
True or False: All chemical reactions involve the transfer of electrons.
False
What type of reaction involves both oxidation and reduction?
Redox reaction
In a redox reaction, the substance that is oxidized is the one that _______.
Loses electrons
In a redox reaction, the substance that is reduced is the one that _______.
Gains electrons
What is the term for the oxidation state of an atom?
Oxidation number
True or False: Electrons are negatively charged particles.
True
What happens to the oxidation state of an element when it gains electrons?
It decreases
What happens to the oxidation state of an element when it loses electrons?
It increases
Fill in the blank: The loss of electrons is often accompanied by the release of _______.
Energy
Which subatomic particle is primarily involved in oxidation and reduction?
Electron
What is the common result of an oxidation reaction?
Formation of a cation
OIL RIG
oxidisation is loss
reduction is gain
