𝙲𝚑𝚎𝚖𝚒𝚜𝚝𝚛𝚢 𝟸 𝙴𝚡𝚊𝚖 🧪

𝙽𝚊𝚖𝚒𝚗𝚐 𝙲𝚘𝚖𝚙𝚘𝚞𝚗𝚍𝚜

100

N₂O₅

Dinitrogen pentoxide

200

H₂SO₄

Sulfuric acid

300

 PCl₅

 Phosphorus pentachloride

400

Cu(OH)₂

Copper (II) hydroxide

500

 (NH₄)₂S

Ammonium sulfide

𝘍𝘰𝘳𝘮𝘶𝘭𝘢𝘴 / 𝘗𝘰𝘭𝘺𝘢𝘵𝘰𝘮𝘪𝘤 𝘐𝘰𝘯𝘴

100

Barium Hydroxide

 Ba(OH)₂

200

Phosphoric Acid

H₃PO₄

300

Ammonium Carbonate

(NH₄)₂CO₃

400

Zinc Dichromate

 ZnCr₂O₇

500

Silver Dihydrogen Phosphate

AgH₂PO₄

𝙰𝚝𝚘𝚖𝚒𝚌 𝚂𝚝𝚛𝚞𝚌𝚝𝚞𝚛𝚎 & 𝙸𝚜𝚘𝚝𝚘𝚙𝚎𝚜

100

How many protons in ²³Na⁺?

11

200

Tungsten has 74 protons and 112 neutrons. What is it's mass number ?

186

300

How many electrons are in Se²⁻ ?

18

400

This isotope has a mass number of 81 and 35 protons. How many neutrons does it have ?

46 neutrons.

500

Element X forms a compound X₃N . It's most stable ion has 59 neutrons . What is element X ?

Indium (In)

𝙿𝚎𝚛𝚌𝚎𝚗𝚝 𝙲𝚘𝚖𝚙𝚘𝚜𝚒𝚝𝚒𝚘𝚗

100

C in C₁₂H₂₂O₁₁

41.4%

200

N in (NH₄)₂SO₄

21.2%

300

Cr3Si

100%

400

N in H₄N₂O₄

29.17%

500

Cl in BaCl₂

 66.0%

𝙿𝚎𝚛𝚒𝚘𝚍𝚒𝚌 𝚃𝚊𝚋𝚕𝚎 & 𝙴𝚕𝚎𝚖𝚎𝚗𝚝𝚜

100

Symbol for lightest alkaline earth metal

Be (Beryllium)

200

This alkali metal in period 4 has an atomic mass of 39.10 amu

K (potassium)

300

This element is the only liquid non-metal at room temperature

Br (Bromine)

400

This is the only non-metal in group 3A of the periodic table.

B (Boron)

500

 Symbol for the only liquid metal

Hg (Mercury)