Atoms & Valence Electrons
What do we call electrons located on the outermost energy level?
What are valence electrons?
What two types of elements most commonly form ionic compounds?
Covalent bonds most commonly form between what types of elements?
What are two nonmetals?
Which type of bonding is associated with a "sea of mobile electrons"?
What is metallic?
How many valence electrons should a neutral phosphorus atom have?
What is 5?
How many valence electrons does magnesium have?
What is 2?
What happens to electrons when an ionic bond forms?
What is transfer from one atom to another?
What happens to electrons when a covalent bond forms?
What is electrons are shared between atoms?
Which type of compound has a high melting point and forms a brittle crystal lattice?
What is ionic?
What is the E.N.D. in the compound H2?
What is 0?
An element has 2 valence electrons. What group is it in and what charge will it most likely form?
What is Group 2 and 2+?
What is the chemical formula between magnesium and sulfur?
What is MgS?
What type of covalent bond has an unequal sharing of electrons?
What is a polar covalent bond?
A substance has a low melting point and does not conduct electricity as a solid or when dissolved in water. What type of compound is it most likely to be?
What is covalent?
How many electrons total should be in a F2 molecule?
What is 7 each, 14 total?
Why do atoms bond?
Why does sodium become Na+ when it forms sodium chloride?
What is because it loses one valence electron due to the transfer or electrons, making its charge positive?
Is the bond between two chlorine atoms (Cl2) polar or nonpolar? Why?
What is nonpolar because the atoms pull the electrons equally?
Why can metals conduct electricity as solids?
What is because they have electrons that can move freely through the metal?
What is the E.N.D and type of bond for the compound LiCl?
What is 2 and ionic?
An atom has 5 valence electrons. Is it more likely to gain or lose electrons when forming an ion and what charge would it have?
What is gain and 3-?
Aluminum forms Al3+ and oxygen forms O2-. What is the correct formula for the compound they form?
What is Al2O3?
What is 1, polar covalent bond, and because carbon is more electronegative than oxygen which has a stronger pull of the electrons.
An ionic compound is dissolved in water. Can is conduct electricity and why?
What is yes, because the ions can freely move through the solution?
What is the E.N.D of radon and why?
What is not applicable, noble gases do not form bonds?