Group 3A Group 4A Group 5A Group 6A Group 7A Al Si 4 valence electrons 8 – 4 = 4 bonds P4 5 valence electrons 8 – 5 = 3 bonds S8 6 valence electrons 8 – 6 = 2 bonds Cl2 7 valence electrons 8 – 7 = 1 bond 12 nearest neighbors per atom per atom per atom per atom Metallic bonding Covalent bonding A Figure 12.19 Bonding in period 3 elements.
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
Which of these drawings represent molecules?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
