Presentation is loading. Please wait.

Presentation is loading. Please wait.

How many valence electrons are in an atom of magnesium? 1.2 2.3 3.4 4.5.

Similar presentations


Presentation on theme: "How many valence electrons are in an atom of magnesium? 1.2 2.3 3.4 4.5."— Presentation transcript:

1 How many valence electrons are in an atom of magnesium?

2 How many dots around a silicon atom in a Lewis Dot?

3 What is the charge on the strontium ion?

4 What is the formula of the ion formed when potassium achieves noble-gas electron configuration? 1.K 2+ 2.K 1+ 3.K 1- 4.K 2-

5 Which of the following elements forms an ion with a charge of -1? 1.fluorine 2.hydrogen 3.potassium 4.sodium

6 How many electrons does nitrogen gain in order to achieve a noble-gas electron configuration?

7 How does oxygen obey the octet rule when reacting to form compounds? 1.It gains electrons. 2.It gives up electrons. 3.It does not change its number of electrons. 4.Oxygen does not obey the octet rule.

8 What is the charge on each cation in the ionic compound sodium sulfide?

9 What is the net charge of the ionic compound calcium fluoride?

10 Which of the following is true about an ionic compound? 1.It is a salt. 2.It is held together by ionic bonds. 3.It is composed of anions and cations. 4.all of the above

11 How many valence electrons are transferred from the calcium atom to iodine in the formation of the compound calcium iodide?

12 What is the formula for the ionic compound sodium nitride? 1.Na 3 N 2.NaN 3 3.Na 2 N 2 4.NaN

13 What is the formula for aluminum oxide? 1.Al 2 O 3 2.AlO 3 3.Al 3 O 2 4.AlO

14 What is the formula for potassium sulfide? 1.KS 2 2.K 2 S 2 3.K 2 S 4.KS

15 How does titanium obey the octet rule when reacting to form compounds? 1.It gains electrons. 2.It gives up electrons. 3.It does not change its number of electrons. 4.Calcium does not obey the octet rule.

16 What is the charge of the anion in the ionic compound calcium sulfide?

17 What is the charge of the cation in the ionic compound CaS?

18 What is the charge on each ammonium ion in Rb 3 N?

19 What is the net charge of the ionic compound calcium fluoride?

20 What is the formula for the ionic compound sodium nitrite? 1.Na 3 N 3 2.Na 3 N 3.Na 2 N 3 4.NaN 3

21 What is the formula of iron(III) oxide? 1.FeO 3 2.FeO 3.Fe 2 O 3 4.Fe 3 O 2

22 What is the formula for potassium sulfide? 1.K 2 S 2.K 2 S 4 3.K 4 S 2 4.K(SO 4 ) 2

23 What is the formula of the ion formed when potassium achieves noble-gas electron configuration? 1.K 2+ 2.K 1+ 3.K 1- 4.K 2-

24 Name the following compound: CaCl 2 1.Calcium dichloride 2.Calcium (II) chloride 3.Calcium chloride 4.Calcium chlorine

25 What is the correct formula for magnesium chloride? 1.MgCl 2.Mg 2 Cl 3.MgCl 2 4.Mg 2 Cl 2

26 What is the correct formula for sodium phosphate? 1.NaP 2.NaPO 4 3.Na 3 PO 4 4.Na(PO 4 ) 3

27 How many valence electrons are in an atom of magnesium?

28 How many valence electrons are in a silicon atom?

29 How does calcium obey the octet rule when reacting to form compounds? 1.It gains electrons. 2.It gives up electrons. 3.It does not change its number of electrons. 4.Calcium does not obey the octet rule.

30 What is the electron configuration of the calcium ion? 1.1s 2 2s 2 2p 6 3s 2 2.1s 2 2s 2 2p 6 3s 2 3p 6 3.1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 4.1s 2 2s 2 2p 6 3s 2 3p 2 4s 2

31 What is the electron configuration of the sulfide ion? 1.1s 2 2s 2 2p 6 3s 2 3p 6 2.1s 2 2s 2 2p 6 3s 2 3p 2 3.1s 2 2s 2 2p 6 3s 2 3p 4 4.1s 2 2s 2 2p 6 3s 6

32 What is the charge on the strontium ion?

33 What is the formula of the ion formed when potassium achieves noble-gas electron configuration? 1.K 2+ 2.K 1+ 3.K 1- 4.K 2-

34 Which of the following elements forms an ion with a charge of -1? 1.fluorine 2.hydrogen 3.potassium 4.sodium

35 How many electrons does nitrogen gain in order to achieve a noble-gas electron configuration?

36 How does oxygen obey the octet rule when reacting to form compounds? 1.It gains electrons. 2.It gives up electrons. 3.It does not change its number of electrons. 4.Oxygen does not obey the octet rule.

37 What is the electron configuration of the oxide ion (O)? 1.1s 2 2s 2 2.1s 2 2s 2 2p 2 3.1s 2 2s 2 2p 4 4.1s 2 2s 2 2p 6

38 What is the charge on the cation in the ionic compound sodium sulfide?

39 What is the net charge of the ionic compound calcium fluoride?

40 Which of the following is true about an ionic compound? 1.It is a salt. 2.It is held together by ionic bonds. 3.It is composed of anions and cations. 4.all of the above

41 How many valence electrons are transferred from the calcium atom to iodine in the formation of the compound calcium iodide?

42 What is the formula for the ionic compound sodium nitride? 1.Na 3 N 2.NaN 3 3.Na 2 N 2 4.NaN

43 What is the formula unit of aluminum oxide? 1.Al 2 O 3 2.AlO 3 3.Al 3 O 2 4.AlO

44 What is the formula for potassium sulfide? 1.KS 2 2.K 2 S 2 3.K 2 S 4.KS

45 An ionic bond is a bond between ____. 1.a cation and an anion 2.valence electrons and cations 3.the ions of two different metals 4.the ions of two different nonmetals

46 Write the formula for the compound barium oxide.

47 Write the formula for the compound rubidium phosphide.

48 Write the formula for the compound boron chloride.


Download ppt "How many valence electrons are in an atom of magnesium? 1.2 2.3 3.4 4.5."

Similar presentations


Ads by Google