Chemische Bindungen Flashcards
(15 cards)
What is a chemical bond?
A chemical bond is a lasting attraction between atoms that enables the formation of chemical compounds.
True or False: Ionic bonds involve the sharing of electron pairs between atoms.
False
What type of bond is formed when electrons are shared between atoms?
Covalent bond
Fill in the blank: In an ionic bond, one atom ______ electrons to another atom.
transfers
What is the primary characteristic of metallic bonds?
Metallic bonds involve a ‘sea of electrons’ that are free to move around, allowing for conductivity.
Which type of bond generally has the highest melting and boiling points?
Ionic bonds
Multiple Choice: Which of the following is NOT a type of chemical bond? A) Ionic B) Covalent C) Magnetic D) Metallic
C) Magnetic
What is electronegativity?
Electronegativity is the measure of an atom’s ability to attract and hold onto electrons.
True or False: Polar covalent bonds occur when electrons are shared equally between two atoms.
False
What determines whether a bond is ionic or covalent?
The difference in electronegativity between the two atoms involved.
Fill in the blank: A molecule with a positive and negative end is called a ______ molecule.
polar
What is a hydrogen bond?
A hydrogen bond is a weak attraction between a hydrogen atom bonded to an electronegative atom and another electronegative atom.
Multiple Choice: Which of the following compounds would likely form ionic bonds? A) NaCl B) H2O C) CH4 D) O2
A) NaCl
What is the main difference between a single, double, and triple bond?
The number of shared electron pairs between two atoms; single bonds share one pair, double bonds share two pairs, and triple bonds share three pairs.
True or False: All chemical bonds can be broken by applying heat.
True
