What is a covalent bond and how do electrons get shared?and how?
A covalent bond forms when atoms share one or more pairs of electrons.When 2 non-metal atoms bond a large amount of energy is need in order to share electrons.
100
What happens when an positive and negative charges no longer cancel each other out?
The atoms become ions.
100
What are the properties of metal?
Metals can conduct electricity,are malleable and have ductility.
100
What happens when a chemical bond form?
Electrons are shared,gained, or lost.
200
The number of electrons in an atom is the same as what?
The number of electrons in an atom is the same as the atomic number.
200
What is a molecule?
A molecule is a group of atoms that are held together by chemical forces.
200
How do ionic bonds form?
Ionic bonds form when atoms pull electrons away from other atoms.
200
What is a metallic bond?
A metallic bond is a bond formed by the attraction between positively charged ions and the electrons around them.
200
What is a chemical bond?
A chemical bond is an interaction that holds two atoms together.
300
The atomic number is the number of what?
The atomic number is the number if protons in an atom
300
Molecules are composed of how many atoms?
Molecules are composed of atleast two covalently bonded atoms.
300
What happens when an atom loses electrons?
Energy is needed in order to overcome the attraction of the electrons to the protons in the nucleus.
300
How are positively charged metal ions formed?
They form when metal atoms lose electrons.
300
What is chemical bonding?
Chemical Bonding is when atoms join together to form new substances.
400
What is an valence electron and what does it determine?
A valence electron are the electron(s) in the outer most shell and it determines if an atom will form bonds.
400
Are diatomic molecules the simplest of all molecules and are they the most important?
Yes diatomic molecules are the simplest molecules and yes they are also the most important molecules because you cannot live without diatomic oxygen molecules.
400
How is the energy gained from electrons gained?
Energy is given off by most non-metal atoms when they gain electrons.
400
Why do electrons move around and between the metal ions?
Because positive metal ions are always surrounded by and attracted to the electrons in the metal.
400
Do all electrons in an atom make chemical bonds and and how are bonds formed?
Not all of the electrons in an atom make chemical bonds and most atoms form bonds using only the electrons in the outermost energy level
500
How many electrons do atoms need to bond and do all atoms need 8 electrons to have a filled outermost energy level?
Atoms need to have less than 8 electrons in order to bond and no not all atoms need 8 electron to have a filled outermost energy level.
500
Molecules made up of two atoms are called what?and elements found in nature as diatomic molecules are call what?
Molecules made up of two atoms are called diatomic elements and elements found in nature as diamotic molecules are called diatomic elements.
500
The number of electrons lost by the metal atoms equals what?
The number of electrons lost by the metal atoms equals the number gained by the non-metal atoms.
500
What do moving electrons maintain?
Moving electrons maintain the metallic bonds no matter how the shape of the matal changes.
500
How are elements grouped based on similar properties?
Elements within a group,or family, the atoms of each element have the same number of valence electrons.