1a) electronegativity? a. is a measure of an atom\'s attraction for an electron

ID: 532367 • Letter: 1

Question

1a) electronegativity?

a. is a measure of an atom's attraction for an electron in a chemical bond

b. is the total negative charge on a polyatomic anion

c. is the same for all of the elements in a family or group

d. decreases from left to right across a period on the periodic table

2b).A polar covalent bond is created when?

a. a metallic element reacts with a nonmetallic element

b. two atoms share their bonding electrons unequally

c. two atoms share three or more electrons

d. two atoms of the same element form double or triple bonds

3c.) Which statement is not true?

A. In forming a solution the solute dissolves other substances that are called solvents

b.) Water is the solvent in an aqueous solution

c.) Pure water does not conduct electricity

1a)

a. is a measure of an atom's attraction for an electron in a chemical bond , TRUE

b. is the total negative charge on a polyatomic anion --> False, since this may be as well for a sinlge atom

c. is the same for all of the elements in a family or group --> false, it achenges as size/atomic number changes

d. decreases from left to right across a period on the periodic table --> False, acutally it increases

2b).A polar covalent bond is created when?

a. a metallic element reacts with a nonmetallic element --> False, typically made by nonmetals

b. two atoms share their bonding electrons unequally --> true, it is an unequal share of electrons

c. two atoms share three or more electrons --> false, this can be done with tdifferent set of electrons

d. two atoms of the same element form double or triple bonds --> false, no need to double / Triple bonding

3c.) Which statement is not true?

A. In forming a solution the solute dissolves other substances that are called solvents --> This is false

b.) Water is the solvent in an aqueous solution --> true, since water is aqueous medium

c.) Pure water does not conduct electricity -> True, since water requires ions to flow electrons

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