physical science

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plse make sure these are correct

1.When an atom loses an electron is..
a. becomes a negative ion.
b. becomes a positive ion.
c. forms a covalent bond.
d. gains protons

is the answer D

2.Which of these is a property of an ionic compound?

a. low melting point
b. poor conductor of electricity
c. crystal shape
d. shared electrons

is the answer B

3. A bond in which a pair of electrons is shared between two atoms.

a. ionic
b. covalent
c. polyatomic
d. triple

is the answer A

4. Fluorine atoms cannot form a doubel or triple bond because fluorine...

a. is a nonmetal
b. strongly attracts electrons
c. has 7 valance electrons
d. is a gas at room tempiture

is the answer D

5. An ionic crystal splits along a face of
a. like charges
b. molecules
c. unlike charges
d. random ions

plse help me and thx

  • physical science -

    1. b
    3. b

    not sure about the others though.

  • physical science -

    I don't believe any of the original answers are correct.

  • physical science -

    Marcie has the correct answer for 1 and 3.

  • physical science -

    im pretty sure 2 is d.

  • physical science -

    thx i am like having trouble with this chapter becuase are teacher asigned it and like we didn't really go over the chapter do you happen to know 4 and 5

  • physical science -

    no sorry...we are doing the same thing in science and we take the test over it tom...we never talked about those things from 4 and 5....i don't really get it either.

  • physical science -

    thx any ways and good luck on your test;)

  • physical science -

    thanks...hope you get your other answers

  • physical science -

    Ionic compounds are formed when a metal loses an electron to a non-metal, which gains the electrons.
    Covalent compounds are formed, on the other hand, when electrons are shared between atoms.

  • physical science -

    atoms gain or lose electrons to achieve what?

  • physical science -

    1 is b

  • physical science -

    My science book is exactly the same. this is what I put:

    1.b
    2.c
    3.b
    4.d
    5.?

    I'm not sure if I am right on some of those, and I'm still looking for the answer for number 5. Hope this helped!

  • physical science -

    i need number 5 too!!!! im doin the same stuff for hw now

  • physical science -

    what is the factors of quantity and quality of water?

  • physical science -

    when an atom loses an electron it becomes a positive ion

    A property of an ionic compound is crystal shape


    A bond in which a pair of electrons is shared between two atoms is a covalent bond

    Fluorine atoms cannot form a doubel or triple bond because fluorine has 7 valence electrons

    An ionic crystal splits along a face of like charges


    im pretty sure these are all right
    i had the same questions for homework but i didn't hand it in yet so i don't know if they're all correct

    1. B
    2. C
    3. B
    4. C
    5. A

    hope this helps :)

  • physical science -

    Most of you guys are wrong. Are you taking honors? Cause I got 1.B 2.C 3.B 4.C 5.A

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