castrohyramae
Answered

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1) Electrons involved in bonding between atoms are
a. valence electrons
b. inside the nucleus
C. closest to the nucleus
d. positively charged
2)Each family in the periodic table has its own characteristic properties based on the number of
a. neutrons
b. valence electrons
c. protons
d. ions
3) What is the greatest number of valence electrons an atom can have? With the exception of helium.
a. 2.
b. 3
C, 8
d. 12.
4) If atoms of a halogen nonmetal (Group 17) gains one electron, the atoms then have
a. no valence electrons
b. 7 valence electrons
C. 8 valence electrons
d. 17 valence electrons
5) When an atom loses an electron, it becomes a
a. positive ion
b. negative ion
c. neutral ion
d. neutral ato
6) An ionic bond is the attraction between
a. similarly charged ions
b. oppositely charged ions
C. neutral ions
d. neutral atoms
7) The element boron is directly above aluminum on the periodic table. Which statement about
boron is true?
a. Boron is in the same period as aluminum
b. Boron is in the same group as aluminum and has 5 valence electrons
C. Boron has 5 valence electrons and is in the same period as aluminum
d. Boron is in the same group as aluminum and has 3 valence electrons
8) What is a double bond?
a. a bond between two atoms
b. one pair of electrons shared between two atoms
c. two pairs of electrons shared between two atoms
d. two pairs of electrons shared between four atoms
9) Which is a property shared by most covalent compounds?
a. high boiling point
b. high melting point
C. low melting point
d. good conductor of heat and electricity
10) Covalent (molecular) compounds do not conduct electricity because they
a. break up into ions.
b. do not break up into ions.
C. do not dissolve in water.
d. have high melting points.​

Sagot :

nathy89

Answer:

1. A

2. B

3. A

4. C

5. A

6. B

7. D

8. A

9. C

10. C

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