Week 4 Flashcards
Covalent bonds form between what?
Non metal atoms
What does the covalent bonds between non metal atoms mean?
That neither atom can gain an electron from the other. Instead they are shared.
what is it called when each atom is able to have full valence shells
a stable octet configuration
What do covalent bonds consist of?
Shared pairs of electrons
what do electron dot diagrams show?
The valence electrons
How are electrons arranged on the electron dot diagram?
They are arranged in such a way that each atom has a share of 8 electrons. This is known as the octet rule.
How can each atoms mass be found?
Every atom has a mass that can be found using the periodic table. This is known as the mass number or the atomic mass.
The rounded mass number is the smaller or larger number found next to the symbol of the element?
The larger number
what is needed to find the molecular mass of compounds?
The periodic table and the formula of the compound
The Atomic number is smaller or larger then the mass number
smaller
How to find Molecular Mass?
- Find the Atomic Mass of each element in the compound
2. Add together
Number of bonds formula?
of bonds = (ideal-real) ÷ 2
Process of drawing dot diagrams?
Determine total valence electrons available-REAL #
Determine # electrons required (octet)-IDEAL #
Determine # electrons to be shared
Hence the # of bonds required
Draw dot diagram
