Salt, silt, and clay particles
Answer:
D. 0.75 grams
Explanation:
The data given on the iridium 182 are;
The half life of the iridium 182,
= 15 years
The mass of the sample of iridium, N₀ = 3 grams
The amount left, N(t) after two half lives is given as follows;

For two half lives, t = 2 × 
∴ t = 2 × 15 = 30


∴ The amount left, N(t) = 0.75 grams
Answer:
Sulfur
Explanation:
Sulfur has 16 valence electrons, as shown in the diagram.
Atomic number is equal to protons and electrons, so the answer is 5
Answer:
Ian Somerhalder because he's JUST SO fine
Explanation: