If an object has extra electrons, it will surely have negative charge.
A negative charge.
Since protons have a positive charge and electrons have a negative charge, an atom with more protons than electrons would have a positive charge. Note that an atom with this kind of imbalance is known as an ion.
A negative charge that exists because of a covalent bond with hydrogen
If an atom loses an electron, it will be positively charged. An example may make this clearer. A neutral carbon atom has 6 protons and 6 electrons. If you take away an electron, you will have 6 protons and 5 electrons, for a total charge of +6 -5 = +1.
oxygen atoms have -2 charge where hydrogen generally have +1
the nucleas, is the center of an atom. It consists of two kinds of particles; Protons, and Neutrons. Protons have a positive electric charge, and Neutrons has a neutral (blank) electric charge. Every atom's nucleas has these two particles in them. The number of particles in a nucleas depends on what kind of atom.
Negative
negative
negative
This atom become a cation (positive).
Neutral or no charge.
The oxygen atom is neutral.
Hydrogen has a positive charge.
An atom that has the same amount of protons and electrons has no net charge and therefore is neutral.
Oxygen -2 Hydrogen +1
a partially negative charge.
positive
The sodium cation is positive (+1).