12) a neutral atom has two, eight, eight electrons in its first, second, and third energy levels. this information
a) does not tell us about the atomic number of the element
b) does not tell us about the chemical properties of the element
c) does not tell us about the atomic mass of the element
d) does not tell us about the size of the element bloom's taxonomy: application/analysis section: 2.2

C.

Explanation:

Option C

The information given in the question tells us about the number of electrons in an atom and also the number of shells in the atom. So, we will come to know about the atomic number, size and chemical properties of the atom. But we cannot determine atomic mass. Atomic mass is a function of number of neutrons and protons.

temp rises, and expansion

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.