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MOVING ACROSS THE PERIODIC TABLE, WHAT INCREASES ?
ELECTRONEGATIVITY
WHAT ARE THE TWO TYPES OF COVALENT BONDS?
1) POLAR 2) NON-POLAR
DEFINE A POLAR COVALENT BOND
SEPARATION OF CHARGE-POSITIVE AND NEGATIVE AND THE SHARING IS NOT EQUAL, SO THE CHARGE WILL BE NEGATIVE.
DEFINE A NON-POLAR COVALENT BOND
A NON-POLAR COVALENT BOND IS A COVALENT BOND IN WHICH THE ELECTRONS ARE SHARED EQUALLY.
WHAT IS A DIPOLE?
A SEPARATION OF CHARGE THAT OCCURS IN A CHEMICAL BOND BECAUSE OF DIFFERENCES IN THE ELECTRONEGATIVITES OF THE BONDED ATOMS.
IS THIS STATEMENT TRUE OR FALSE:
THE GREATER THE DIFFERENCE IN ELECTRONEGATIVITY BETWEEN ELEMENTS, THE GREATER THE POLAR BOND BETWEEN THEM?
YES, IT IS TRUE!
WHICH BOND IS MOST POLAR OF THESE:
1) B-H (2.04/2.2) OR 2) BE-F (1.57/3.98) OR 3) BE-CL (1.57/3.16)
THE ANSWER IS #2- BE-F IS THE MOST POLAR AND THEN FOLLOWED BY: #3 AND THEN #1
DEFINE MOLECULAR POLARITY
THE POLARITY OF A MOLECULE DEPENDS ON THE POLARITY OF BONDS AND THE MOLECULAR SHAPE OF THE MOLECULE.
IS ELECTRONEGATIVITY TECHNICALLY A PERIODIC TREND?
YES!
DO NON-METALS LOSE OR GAIN ELECTRONS?
NON-METALS GAIN ELECTRONS & THEN FORM IONS!
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