Answer:
D
Explanation:
Answer is the last one.......
The average atomic mass: 40.078 u
electron configuration is the long list underneath the name "calcium" on the element. it starts with 1s^2s^2
Answer:
The answer to your question is: 2Mg + O₂ ⇒ 2MgO
Explanation:
Data
Magnesium = Mg
Oxygen = O
Equation
2Mg + O₂ ⇒ 2MgO
Reactants Products
2 -------- Mg ---------- 2
2 -------- O --------- 2
Answer:
1.05 x 10^-6
Explanation:
Lambda = c / f
f if frequency
c is intensity of light
lambda = 3 x 10^8 / 2.85 x 10^14
= 1.05 x 10 ^-6