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When an atom of an element has a different number of neutrons.
An atom is not an element on its own. Think of it as a building block for every element in existence. Atoms are what make up the elements.
It would form an ionic bond. The atom with 7 electrons is cation and the atom with 1 is an anion.
Covalent bonds between carbon atoms; simple, double or triple.
What? Please make this clearer.
normally two unless the molecule formed is ionic though that still probally wouldn't make sense
The element with an atomic number of 8 is Oxygen. It has 2 electrons in the first shell and 6 in the second, leaving a valence of 2. Oxygen, therefore, can form covalent bonds with only two Hydrogen atoms. This is also known as water.
0 bonds
Its all because of the electron dencity around the nucleus.when a carbon atom makes 3 bonds with another carbon atom there exists 1 sigma bond and 2 pi bonds,but it needs very high energy to have 1 sigma bond and 3 pi bonds that's why a carbon atom cannot make 4 bonds with another carbon atom.
When an atom of an element has a different number of neutrons.
An atom can make a number of covalent bonds equal to the number of electrons it needs to fill its outer shell
An atom is not an element on its own. Think of it as a building block for every element in existence. Atoms are what make up the elements.
Electrons.
That varies depending on the element and the isotope. An element is defined by its number of protons. This is called the "atomic number" of an element.
It would form an ionic bond. The atom with 7 electrons is cation and the atom with 1 is an anion.
A carbon atom can form 4 single covalent bonds
One carbon atom is an element. You must have two or more atoms to make a molecule.