Answer: D. Made of only one kind of atom
Explanation:A compound forms whenever two or more atoms form chemical bonds with each other.
Answer:
Electronic Configuration of calcium ion: Ca²⁺
1s², 2s², 2p⁶, 3s², 3p⁶
Explanation:
Calcium belong to group IIA and known as alkaline earth metals.
- it have two electrons in outer most orbital.
- these outer two electrons are involve in bonding
- calcium lose these two electron and form cation
- cation have 2+ charge
- calcium have total twenty electrons
Electronic Configuration of calcium atom: ²⁰Ca
1s², 2s², 2p⁶, 3s², 3p⁶, 4s²
When calcium ion is form it loses two electron and have 2+ charge on it.
and have total of 18 electrons
So,
Electronic Configuration of calcium ion: Ca²⁺
the last filled orbital will be 3p⁶
1s², 2s², 2p⁶, 3s², 3p⁶
It will become a solid or a gas
Answer:941.3mL
Explanation:
V1 = 752mL
T1 = 25°C = 25 +273 = 298K
T2 = 100°C = 100 +273 = 373K
V2 =?
V1/T1 = V2 /T2
752/298 = V2/373
V2 = (752/298) x 373 = 941.3
V2 = 941.3mL
Answer:
CU
Explanation:
Cu is the correct answer if I'm correct
