It’s c because a wave cycle is repeating patterns all over again and again
Helium i believe is the answer
Answer:
Explanation:
1 Al = 26.98 AMU
3 Br = 239.7 AMU
AlBr3 = 266.69 AMU
Al = (26.98)/(266.69) = 10.1%
Br3 = (239.7)/(266.69) = 89.9%
Malleability is D
Flammability is C
He’st of combustion is A
Toxicity is A
