How many valence electrons are in an atom of magnesium?

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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 1. K K K 1-4. K 2- What is the formula of the ion formed when potassium achieves noble-gas electron configuration? K2+ K1+ K1- K2-

5 Which of the following elements forms an ion with a charge of -1? 1. fluorine 2. hydrogen 3. potassium 4. sodium fluorine hydrogen potassium 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. It gains electrons. It gives up electrons. It does not change it... Oxygen does not ob..

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 It is a salt. It is held together by... It is composed of ani... 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 Na3N NaN3 Na2N2 NaN

13 What is the formula for aluminum 1. Al 2 O 3 2. AlO 3 3. Al 3 O 2 4. AlO oxide? Al2O3 AlO3 Al3O2 AlO

14 What is the formula for potassium 1. KS 2 2. K 2 S 2 3. K 2 S 4. KS sulfide? KS2 K2S2 K2S 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. It gains electrons. It gives up electrons. It does not change it... Calcium does not ob..

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? 0%

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 Na3NO3 Na3N Na2NO3 NaNO3

21 1. FeO 3 2. FeO 3. Fe 2 O 3 4. Fe 3 O 2 What is the formula of iron(iii) oxide? FeO3 FeO Fe2O3 Fe3O2

22 1. K 2 S What is the formula for potassium sulfide? 2. K 2 S 4 3. K 4 S 2 4. K(SO 4 ) 2 K2SO4 K2(SO)4 K2(SO4)2 K(SO4)2

23 1. K K K 1-4. K 2- What is the formula of the ion formed when potassium achieves noble-gas electron configuration? K2+ K1+ K1- K2-

24 Name the following compound: 1. Calcium dichloride 2. Calcium (II) chloride 3. Calcium chloride 4. Calcium chlorine CaCl 2 Calcium dichloride Calcium (II) chloride Calcium chloride 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 MnCl Mn2Cl MnCl2 Mn2Cl2

26 What is the correct formula for sodium phosphate? 1. NaP 2. NaPO 4 3. Na 3 PO 4 4. Na(PO 4 ) 3 NaP NaPO4 Na3PO4 Na(PO4)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. It gains electrons. It gives up electrons. It does not change it... Calcium does not ob..

30 What is the electron configuration of the calcium ion? 1. 1s 2 2s 2 2p 6 3s s 2 2s 2 2p 6 3s 2 3p s 2 2s 2 2p 6 3s 2 3p 6 4s s 2 2s 2 2p 6 3s 2 3p 2 4s 2 1s22s22p63s2 1s22s22p63s23p6 1s22s22p63s23p64s2 1s22s22p63s23p24s2

31 What is the electron configuration of the sulfide ion? 1. 1s 2 2s 2 2p 6 3s 2 3p s 2 2s 2 2p 6 3s 2 3p s 2 2s 2 2p 6 3s 2 3p s 2 2s 2 2p 6 3s 6 1s22s22p63s23p6 1s22s22p63s23p2 1s22s22p63s23p4 1s22s22p63s6

32 What is the charge on the strontium ion?

33 1. K K K 1-4. K 2- What is the formula of the ion formed when potassium achieves noble-gas electron configuration? K2+ K1+ K1- K2-

34 Which of the following elements forms an ion with a charge of -1? 1. fluorine 2. hydrogen 3. potassium 4. sodium fluorine hydrogen potassium 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. It gains electrons. It gives up electrons. It does not change it... Oxygen does not ob..

37 What is the electron configuration of the oxide ion (O)? 1. 1s 2 2s s 2 2s 2 2p s 2 2s 2 2p s 2 2s 2 2p 6 1s22s2 1s22s22p2 1s22s22p4 1s22s22p6

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 It is a salt. It is held together by... It is composed of ani... 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 Na3N NaN3 Na2N2 NaN

43 1. Al 2 O 3 2. AlO 3 3. Al 3 O 2 4. AlO What is the formula unit of aluminum oxide? Al2O3 AlO3 Al3O2 AlO

44 What is the formula for potassium 1. KS 2 2. K 2 S 2 3. K 2 S 4. KS sulfide? KS2 K2S2 K2S 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 a cation and an anion valence electrons an... the ions of two differe.. the ions of two differe..

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.

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