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WHY ATOMS FORM CHEMICAL BONDS?
TO BE MORE STABLE
DEFINE A POLAR BOND
WHEN ELECTRONS ARE NOT SHARED EQUALLY BETWEEN ATOMS
true or false in covalent bond each molecule has a shape or geometry
true
true or false.....ionic compounds act as the brittle salts with low melting point. if not correct it
false high melting point
WHY DO ELEMENTS OBEY THE OCTET RULE?
to have full orbitals with electrons which create the stability of a element with less energy needed.
IONIC RADII VALUES ARE ?
ARE NOT CONSTANT
why do metals conduct electricity?
the spaces between atoms and mobile electrons contribute to the ability of metals to be good conductors of electricity, because electrons in the metallic lattice structure are free to flow and carry the electric charge
WHAT IS THE EXOTHEMIC REACTION?
THE POROCESS WHEREBY HAET OR ENERGY IS RELEASED
what is the dactive covalent bond?
Also known as the co-ordinates bond in which an atom uses its lone pair to form a covalent bond
complete....metal atoms arrange themselves in a structure called?
metallic lattice
define sublimation
transition from solid to gas
finish the sentence......ionic compounds are held together by ........in a ..........lattice
electrostatic force , crystal
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