Letter D.
The scarier the better, and many people like loops
Half-life is basically how long it takes for a radioactive molecule to get to 1/2 of its original mass.
so if sodium 24 mass was 5g and it's half life was 24years then:
after every 24years 1/2 of 5g would have decayed. so in 48years there will only be 2.5g left.
Answer:
Arsenic
Explanation:
This is because it has atomic number 33
You got it, reactant must collide in proper orientation and with enough energy. Imagine you double concentration, you are doubling the amount of reactant thus giving more collision at the molecular level thus increasing the reaction rate.
<span>Hope that help.</span>
Toothpaste, sodium hydroxide
