Can you please have a look at my questions. Thank you very much in return:-)

1. Will 2 metals develop an ionic compound? Clarify.

I don't think they will, but I don't know how to explain. I only know that in order to form ionic compounds, the total number of electrons given up by the metal ions must exatcly balance the toal number of electrons gained by the non-metal ions. - please help

2.write the name and symbol for the ion of each element listed below.

a-sodium= sodium, NA
b-chlorine= Chloride, Cl
c-copper with an ion charge of 2+= Copper(II), Cu

d-aluminum= aluminum, Al
e-phosphorus= phosphoride, P

3.write the name of the ion for each of the following non-metal elements. Am I just supposed to add ide at the end of them? I'm just a beginner on this, so I'm not sure If I've done all these correctly.

a-chlorine = chloride
b-bromine = Bromide
c-iodine = iodide
d-phosphorus = phosphide
e-oxygen = oxide
f-sulfur = sulfide
g-nitrogen = nitride?

4.write the name for each polyatomic ion.

a-SO4^2-^ =Sulphate
b-PO4^3+^ =Phospate
c-NO3 =Nitrate
d-OH- =Hydroxide
e-HCO3- =Hydrogen carbonate
f-Co3^2-^ =Carbonate

5. write the names of the compounds formed by the following combinations of elements.

a- sodium and iodine = sodium iodide
b- lithium and bromine = lithium bromide

c- silver and phosphorus = silver phosphate? phosphoride?

d- barium and oxygen = barium oxide

6.name the following ionic compounds

a-NaBr = Sodium Bromide
b-CaSo4 = Calcium Sulfate
c-K2S = Potassium Sulphide
d-Ni(NO3)2 = Nickel Nitrate
e-Mg3N2 = Magnesium Nitrate
f-Fe2(CO3)3 = Irom Carbonate
g-Cr2O3 = Chromium Oxide
h-Al2(SO2)3 = Aluminum Sulphite
i-Cu2SO4 = Copper Sulphate
j-Pb(NO3)4 = Lead Nitrate
I wasn't so sure about these.

7.Which of the following chemical formulas are correct? explain why the incorrect formulas are incorrect.

a-Al2O3 = incorrect
b-CrSO4 = incorrect
c-Fe3O2 = incorrect
d-Fe2(SO4)2 = ?

I don't really get this. Please help me explain:-(

1. Will 2 metals develop an ionic compound? Clarify.

I don't think they will, but I don't know how to explain. I only know that in order to form ionic compounds, the total number of electrons given up by the metal ions must exatcly balance the toal number of electrons gained by the non-metal ions. - please help
Both metals you are trying to combine have the same tendency to LOSE electrons (when combining with a non-metal, the metal is trying to lose, the non-metal is trying to gain and that makes a good fit. Two metals are trying to do the same thing; not a good fit.)

2.write the name and symbol for the ion of each element listed below.
I don't see a charge on ANY of your answers. The question wants the ion of the element listed.
a-sodium= sodium, NA Na^+
b-chlorine= Chloride, Cl Cl^-
c-copper with an ion charge of 2+= Copper(II), Cu Cu^+2 or Cu(II)

d-aluminum= aluminum, Al Al^+3
e-phosphorus= phosphoride, P P and it may have +5, +3, or -3 charge

3.write the name of the ion for each of the following non-metal elements. Am I just supposed to add ide at the end of them? I'm just a beginner on this, so I'm not sure If I've done all these correctly.

a-chlorine = chloride
b-bromine = Bromide
c-iodine = iodide
d-phosphorus = phosphide
e-oxygen = oxide
f-sulfur = sulfide
g-nitrogen = nitride? You got them ALL. Very good!

4.write the name for each polyatomic ion.

a-SO4^2-^ =Sulphate
b-PO4^3+^ =Phospate phosphate but it's a -3 charge, not +3)
c-NO3 =Nitrate
d-OH- =Hydroxide
e-HCO3- =Hydrogen carbonate
f-Co3^2-^ =Carbonate

5. write the names of the compounds formed by the following combinations of elements.

a- sodium and iodine = sodium iodide
b- lithium and bromine = lithium bromide

c- silver and phosphorus = silver phosphate? phosphoride? silver phosphate is correct

d- barium and oxygen = barium oxide

6.name the following ionic compounds

a-NaBr = Sodium Bromide
b-CaSo4 = Calcium Sulfate interesting that you named it sulphate above but sulfate here.
c-K2S = Potassium Sulphide
d-Ni(NO3)2 = Nickel Nitrate This is called, more properly, nickel(II) nitrate because Ni has oxidation states (common ones, anyway) of +2 and +3.
e-Mg3N2 = Magnesium Nitrate Remember binary compounds always end in -ide. magnesium nitride
f-Fe2(CO3)3 = Irom Carbonate iron(III) carbonate
g-Cr2O3 = Chromium Oxide chromium (III) oxide
h-Al2(SO2)3 = Aluminum Sulphite looks like a typo to me
i-Cu2SO4 = Copper Sulphate another typo unless you meant copper(I) sulfate/sulphate.
j-Pb(NO3)4 = Lead Nitrate lead(IV) nitrate
I wasn't so sure about these.

7.Which of the following chemical formulas are correct? explain why the incorrect formulas are incorrect.

a-Al2O3 = incorrect looks ok to me.
b-CrSO4 = incorrect looks ok to me
c-Fe3O2 = incorrect I would buy into Fe2O3
d-Fe2(SO4)2 = ? probably Fe2(SO4)3 but it might be FeSO4

I don't really get this. Please help me explain:-(

Thank you very much:-)

1. When two metals combine, they generally form an alloy rather than an ionic compound. This is because metals tend to lose electrons to form cations and form metallic bonds with each other, rather than gain or share electrons with non-metals to form ionic compounds.

2.
a) Sodium - Symbol: Na, Ion: Sodium ion (Na+).
b) Chlorine - Symbol: Cl, Ion: Chloride ion (Cl-).
c) Copper - Symbol: Cu, Ion: Copper(II) ion (Cu2+).
d) Aluminum - Symbol: Al, Ion: Aluminum ion (Al3+).
e) Phosphorus - Symbol: P, Ion: Phosphide ion (P3-).

3. Yes, in most cases, the name of a non-metal element will have "ide" at the end to indicate that it is an ion. The ions you have listed are correct:
a) Chlorine - Ion: Chloride (Cl-).
b) Bromine - Ion: Bromide (Br-).
c) Iodine - Ion: Iodide (I-).
d) Phosphorus - Ion: Phosphide (P3-).
e) Oxygen - Ion: Oxide (O2-).
f) Sulfur - Ion: Sulfide (S2-).
g) Nitrogen - Ion: Nitride (N3-).

4. The names for each polyatomic ion are:
a) SO4^2- - Ion: Sulfate (SO4^2-).
b) PO4^3- - Ion: Phosphate (PO4^3-).
c) NO3- - Ion: Nitrate (NO3-).
d) OH- - Ion: Hydroxide (OH-).
e) HCO3- - Ion: Hydrogen carbonate or bicarbonate (HCO3-).
f) CO3^2- - Ion: Carbonate (CO3^2-).

5.
a) Sodium and iodine - Compound: Sodium iodide.
b) Lithium and bromine - Compound: Lithium bromide.
c) Silver and phosphorus - Compound: Silver phosphate.
d) Barium and oxygen - Compound: Barium oxide.

6.
a) NaBr - Compound: Sodium bromide.
b) CaSO4 - Compound: Calcium sulfate.
c) K2S - Compound: Potassium sulfide.
d) Ni(NO3)2 - Compound: Nickel nitrate.
e) Mg3N2 - Compound: Magnesium nitride.
f) Fe2(CO3)3 - Compound: Iron carbonate or ferric carbonate.
g) Cr2O3 - Compound: Chromium oxide.
h) Al2(SO2)3 - Compound: Aluminum sulphite.
i) Cu2SO4 - Compound: Copper sulfate or cupric sulfate.
j) Pb(NO3)4 - This formula is incorrect since nitrate (NO3-) only has a charge of -1 and cannot exist in a +4 state. The correct formula is Pb(NO3)2, which represents lead nitrate.

7.
a) Al2O3 - This is the correct formula for aluminum oxide.
b) CrSO4 - This formula is incorrect because the sulfate ion (SO4^2-) carries a charge of -2, while the chromium ion must have a charge of +3 or +6. The correct formula would be Cr2(SO4)3 for chromium sulfate (VI) or Cr2(SO4)6 for chromium sulfate (III).
c) Fe3O2 - This formula is incorrect. Iron (Fe) typically forms cations with a charge of +2 or +3, so the correct formula would be Fe2O3 for iron(III) oxide.
d) Fe2(SO4)2 - This formula is correct for iron(II) sulfate.

Sure, I'd be happy to help explain the answers to your questions!

1. Will 2 metals develop an ionic compound?

Generally, two metals do not form an ionic compound. This is because metals tend to lose electrons to form cations, and if both metals are willing to lose electrons, there won't be a strong force attracting the two ions together. Ionic compounds typically form between a metal and a non-metal, where the metal donates electrons to the non-metal to form a stable compound.

2. Writing the name and symbol for the ions of each element:

a) sodium: The ion formed by sodium is called sodium ion, and it is represented by the symbol Na+.
b) chlorine: The ion formed by chlorine is called chloride ion, and it is represented by the symbol Cl-.
c) copper with an ion charge of 2+: The ion formed by copper with a charge of 2+ is called copper(II) ion, and it is represented by the symbol Cu2+.
d) aluminum: Aluminum does not typically form ions with a specific charge, so the symbol remains the same, which is Al.
e) phosphorus: The ion formed by phosphorus is called phosphide ion, and it is represented by the symbol P3-.

3. Writing the name of the ion for each non-metal element:

Yes, to name the ion for non-metal elements, you usually add "ide" at the end of the element name. Here are the correct names:
a) chlorine = chloride
b) bromine = bromide
c) iodine = iodide
d) phosphorus = phosphide
e) oxygen = oxide
f) sulfur = sulfide
g) nitrogen = nitride

4. Writing the name for each polyatomic ion:

a) SO4^2-^ = sulfate
b) PO4^3+^ = phosphate
c) NO3 = nitrate
d) OH^- = hydroxide
e) HCO3^- = hydrogen carbonate (also known as bicarbonate)
f) CO3^2-^ = carbonate

5. Writing the names of the compounds formed by the combinations of elements:

a) sodium and iodine = sodium iodide
b) lithium and bromine = lithium bromide
c) silver and phosphorus = There are multiple possibilities here. Silver phosphate and silver phosphide are both valid compounds.
d) barium and oxygen = barium oxide

6. Naming the following ionic compounds:

a) NaBr = sodium bromide
b) CaSO4 = calcium sulfate
c) K2S = potassium sulfide
d) Ni(NO3)2 = nickel nitrate
e) Mg3N2 = magnesium nitride
f) Fe2(CO3)3 = iron carbonate (also called ferric carbonate)
g) Cr2O3 = chromium oxide
h) Al2(SO3)3 = aluminum sulfite
i) Cu2SO4 = copper sulfate
j) Pb(NO3)4 = lead nitrate

7. Correct and incorrect chemical formulas:

a) Al2O3 = Correct formula for aluminum oxide.
b) CrSO4 = Incorrect, the correct formula for chromium(II) sulfate is CrSO4.
c) Fe3O2 = Incorrect, the correct formula for iron(II) oxide is FeO.
d) Fe2(SO4)2 = Correct formula for iron(II) sulfate.

I hope these explanations help you understand the answers to your questions better! Let me know if you have any further questions or need more clarification.