Question

1. Mendeleev organized elements in his periodic table in order of increasing ____________________.

2. You are given the melting points of three unknown substances and are asked to predict which one is an ionic compound. You would select the compound with the ____________________ melting point.
3. Two factors that determine whether a molecule is polar are the types of atoms in the molecule and the ____________________ of the molecule.

Answer 1

1. Mendeleev organized elements in his periodic table in order of increasing ____________________.
atomic number

2. You are given the melting points of three unknown substances and are asked to predict which one is an ionic compound. You would select the compound with the ____________________ melting point.
highest melting point

3. Two factors that determine whether a molecule is polar are the types of atoms in the molecule and the ____________________ of the molecule.
shape of the molecule