15 Questions
What is the maximum number of electrons the first shell of an atom can accommodate?
4 electrons
Which group of elements do not form chemical bonds due to having full outer energy levels?
Alkali metals
What is the term used for the outermost energy level of an atom?
Neutron shell
Which type of elements possess characteristics of both metals and non-metals?
Transition metals
How do elements achieve the octet rule according to the text?
By increasing their proton count
Why are covalent molecules poor conductors of electricity?
They are not made up of ions
What property of covalent molecules contributes to their low boiling and melting points?
Large intermolecular spaces
What makes covalent bonds different from ionic bonds?
Covalent bonds involve sharing electrons, while ionic bonds involve transferring electrons.
Why do covalent bond molecules usually exist in a gaseous, soft solid, or volatile liquid state?
They have high energy bonds
Why do atoms share electrons in covalent bonds?
To achieve the octet rule and gain stability
What makes covalent molecules easily dissolve in organic solvents?
Weak intermolecular forces
Which type of bond is formed when atoms share three pairs of electrons?
Triple covalent bond
Which factor contributes to the low density of covalent bond molecules?
Large intermolecular spaces
What defines a pure covalent bond?
Two similar elements share electrons equally
What distinguishes a polar covalent bond from a non-polar covalent bond?
A non-polar covalent bond involves unequal sharing of electrons.
Learn about atoms, elements, and covalent bonds in chemistry. Understand the composition of atoms and how elements are classified based on their properties. Explore the concept of covalent bonds and their significance in chemical reactions.
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