⚡📊Charge of the atoms
he atomic number of Sodium (Na) is 11
Charge: +1
What is the formula of sodium chloride?
NaCl
Sodium (11) and chlorine (17).
Na⁺Cl⁻
Name the compound with the formula NaCl.
Sodium chloride
Write the bond notation for a hydrogen molecule (H, atomic #1).
H–H (single bond).
The atomic number of Chlorine (Cl) is 17
Charge: –1
What is the chemical formula for potassium fluoride?
KF
Magnesium (12) and oxygen (8).
Mg²⁺O²-
What is the name of H₂O?
Water
Write the bond structure of oxygen (O, atomic #8)
O=O (double bond)
The atomic number of Oxygen (O) is 8.
Charge: –2
What is the formula of carbon dioxide?
CO₂
Lithium (3) and fluorine (9).
Li⁺F⁻
Name the compound CO₂.
Carbon dioxide
Write the bond notation for nitrogen (N, atomic #7)
N≡N (triple bond)
The atomic number of Carbon (C) is 6
Charge:±4
What is the formula for magnesium hydroxide.?
Mg(OH)₂
Calcium (20) and chlorine (17).
Ca²⁺2Cl⁻
Name the compound Fe₂(SO₄)₃
Iron(III) sulfate
Write the bond notation for a phosphorus molecule:P₂ (Atomic number of P = 15)
P≡P (triple bond)
The atomic number of Strontium (Sr) is 38
Charge: +2
What is the formula of water?
H₂O
Calcium (20) and Nitrogen (7)
3Ca²⁺ 2N³⁻
Name the compound Cu(NO₃)₂
Copper(II) nitrate
Show the bond notation for water (H, atomic #1 and O, atomic #8)
H–O–H (two single bonds)