A compound is.. A.A substance whose atoms are exactly alike B.A pure substance containing 2 or more...

Post on 12-Jan-2016

215 views 0 download

Tags:

transcript

A compound is..

A. A substance whose atoms are exactly alike

B. A pure substance containing 2 or more elements

C. A combination of symbols and subscripts

D. Fish

1

Which two elements will form an ionic bond easily?

A. Li and F

B. Li and Ca

C. F and B

D. O and O

2

How are electrons shared in polar covalent bonds?

A. Unequally

B. Equally

C. 70/30

D. They don’t share

3

Which is the correct electron dot diagram for a hydrogen atom?

A. H•

B. An igloo

C. • H •

D. H

4

What is the difference between an ion and a molecule?

A. A molecule is really big and an ion is really small

B. A molecule is only metals and an ion is only nonmetals

C. A molecule is an neutral particle and an ion is a charged particle formed when electrons are gained or lost

5

What type of compound is H2O?

A. Ionic

B. Covalent

C. Metallic

D. None of the above

6

If Sodium loses one electron it becomes…

A. 1+

B. 2+

C. 1-

D. old

7

How many elements does it take to make a molecule?

A. 1 or more

B. 2 or more

C. 3 or more

D. none

8

How many electrons do members of group 17 need to fill their

octet?A. 1

B. 2

C. 3

D. 4

9

A ______ is usually a gas or brittle solid that is a poor conductor of electricity.

A. Group

B. Ion

C. Metal

D. Nonmetal

10

Which would form a metallic bond?

A. Ag

B. H2O

C. NaCl

11

Which is the correct electron dot diagram for a Lithium atom?

A. Li•

B. Li••

C. Li 1+

D. Li

12

Why do atoms bond?

A. Because it’s fun

B. So we can study them in science

C. To form an octet, a full outer level of electrons

D. To be cool

13

What is a valence electron?

A. Your friend

B. An electron on the outer most energy shell

C. Your son’s sister

D. Mrs. Marks’ son

14

A nonpolar covalent bond occurs between atoms _____.

A. Of the same element

B. Of metals

C. In the North Pole

15

Which term refers to a metal’s ability to be drawn into a thin

wire?A. Malleable

B. Charged

C. Flammable

D. Ductile

16

What are elements made of?

A. Water

B. Atoms

C. Cheese

D. Compounds

17

What is an example of an Ionic Compound?

A. NaCl

B. Au

C. H2O

D. O2

18

In polar bonds, what are shared unequally?

A. Neutrons

B. Protons

C. Electrons

D. Atoms

19

What does the termmalleable mean?

A. Negatively charged

B. Able to be hammered into thin sheets

C. Able to be pulled into wires

D. Positively charged

20

Which term refers to the regular repeating arrangement of atoms that

form a unique shape for ionic compounds?

A. Ion

B. Molecule

C. Crystal lattice

D. Atom

21

What is a negative ion?

A. A molecule with extra protons

B. An atom that has gained one electron

C. The nucleus of an atom

D. An atom that has lost one electron

22

What are the meanings of the 2 parts of the word “covalent”?

A. Cov – together, Alent – alien

B. Cova – sharing, lent – together

C. Co – working together sharing, Valent valence electron

D. Cova – positive, lent - negative

23

Which of the following bonds form by sharing electrons?

A. Ionic and covalent

B. Ionic only

C. Metallic and covalent

D. Metallic only

E. Covalent only

24

What type of compound is MgCl2?

A. Ionic

B. Polar covalent

C. Nonpolar covalent

D. Metallic

25

The number of protons in an atom is determined by..

A. Its size

B. Its atomic number

C. Mrs. Marks

D. Its mass

26

What do the dots represent in an electron dot diagram?

A. The outer electrons

B. The total electrons

C. The protons

D. The atomic mass

27

What is the maximum number of electrons needed in the second

energy level of an atom?A. 2

B. 6

C. 8

D. 10

28

Which of the following is polar?

A. Cl-Cl

B. O-H

C. H-H

D. O=O

29

How many atoms of Aluminum are in Al2O3?

A. 1

B. 2

C. 3

D. 6

30

What is the neutral particle that forms when atoms share

electrons?A. Ions

B. Molecule

C. Atom

D. Isotope

31

Which (more than one answer) of the following will form a

negative ion?A. Fluorine

B. Oxygen

C. Helium

D. Lithium

32

Answers – For the number look at the slide numbers in the lower right corner

of each question.1. B

2. A

3. A

4. A

5. C

6. B

7. A

8. A

9. A

10. D

11. A

12. A

13. C

14. B

15. A

16. D

17. B

18. A 33

19. C

20. B

21. C

22. B

23. C

24. C

25. A

26. B

27. A

28. C

29. B

30. B

31. B

32. A and B