12 Questions
What is the primary reason for the low melting and boiling points of simple molecular covalent substances?
The weak intermolecular forces of attraction between the molecules are easily overcome.
What is the relationship between the relative atomic/molecular mass and the weak intermolecular forces of attraction?
The greater the relative atomic/molecular mass, the stronger the intermolecular forces of attraction.
What type of bond is formed when a metal and a nonmetal interact?
Ionic bond
What is the term for a positively charged ion?
Cation
What occurs when atoms gain or lose electrons in ionic bonding?
They become ions
What is the reason for the higher melting points of longer simple covalent molecules?
The molecules have more atoms, resulting in more weak intermolecular forces of attraction
What is the charge of an atom when it gains an electron?
-1
Why do elements in group 1 lose their one outer shell electron to become + cations?
It's easier to lose 1 electron
What is the formula for the ionic compound calcium oxide?
CaO
Why do ionic compounds have high melting and boiling points?
Because they have strong electrostatic forces of attraction
What is the charge of the ion formed by an element in group 3?
3+
What is the function of the electron in the formation of an ionic compound?
It is gained by the anion and lost by the cation
Learn about the characteristics of simple molecular covalent substances, including their low melting and boiling points, weak intermolecular forces, and the energy required to break these forces. Understand how these substances differ from others in terms of their bonding and interactions. Test your knowledge of simple molecular covalent substances and their properties.
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