Ionisation is the addition or removal of an electron to create an ion. Losing an electron creates a positive ion. Gaining an electron creates a negative ion. An atom’s charge can only change through gaining or losing electrons. What happens when a gas is ionized? Gas turns into plasma whenRead More →
In chemistry, a tetravalence is the state of an atom with four electrons available for covalent chemical bonding in its valence. An example is methane: the tetravalent carbon atom forms a covalent bond with four hydrogen atoms. The carbon atom is called tetravalent because it forms 4 covalent bonds. WhyRead More →
Ionic bonds form only between metals and nonmetals. That’s because metals “want” to give up electrons, and nonmetals “want” to gain electrons. What do metal atoms tend to do? Metals tend to lose electrons and non-metals tend to gain electrons, so in reactions involving these two groups, there is electronRead More →