an atom is most stable when its outermost shell is filled with the maximum number of electrons it can hold…

an atom is most stable when its outermost shell is filled with the maximum number of electrons it can hold. an atom will gain, lose, or share valence electrons to fill its outermost shell. to become stable, hydrogen needs one more electron, and oxygen needs two more electrons. an oxygen atom will share valence electrons with two hydrogen atoms so that each atom has a filled outermost shell. when an oxygen atom and a hydrogen atom share valence electrons, a chemical bond is formed. the resulting substance, water, is a compound. its properties are different from those of the elements oxygen and hydrogen. complete the sentences to explain how hydrogen and oxygen atoms become stable when they form a chemical bond. to form water, an oxygen atom and two hydrogen atoms valence electrons. this forms in which each hydrogen atom has valence electrons and the oxygen atom has valence electrons.

an atom is most stable when its outermost shell is filled with the maximum number of electrons it can hold. an atom will gain, lose, or share valence electrons to fill its outermost shell. to become stable, hydrogen needs one more electron, and oxygen needs two more electrons. an oxygen atom will share valence electrons with two hydrogen atoms so that each atom has a filled outermost shell. when an oxygen atom and a hydrogen atom share valence electrons, a chemical bond is formed. the resulting substance, water, is a compound. its properties are different from those of the elements oxygen and hydrogen. complete the sentences to explain how hydrogen and oxygen atoms become stable when they form a chemical bond. to form water, an oxygen atom and two hydrogen atoms valence electrons. this forms in which each hydrogen atom has valence electrons and the oxygen atom has valence electrons.

Answer

Answer:

To form water, an oxygen atom and two hydrogen atoms share valence electrons. This forms a chemical bond in which each hydrogen atom has 2 valence electrons and the oxygen atom has 8 valence electrons.

Explanation:

Step1: Recall electron - sharing concept

In covalent bonding, atoms share electrons.

Step2: Analyze hydrogen's need

Hydrogen needs 2 electrons to fill its outer shell.

Step3: Analyze oxygen's need

Oxygen needs 8 electrons to fill its outer shell.

Step4: Determine bond type

Oxygen and hydrogen share electrons to form a covalent bond.

Step5: Count valence electrons

Hydrogen has 2 and oxygen has 8 valence electrons in water molecule.