Question

36.
54
xe
xenon
131.293
where is the elements atomic mass located?
a. at the bottom
b. at the top
c. the top number + the bottom number
d. the number of protons + the number of neutrons

1. what are the states of matter?

a. solid, liquid, and juice
b. solid and liquid
c. solid and gas
d. solid, liquid, and gas

1. what are the characteristics of solid matter?

a. takes the shape of any container
b. molecules are packed closely together
c. objects have a definite shape
d. have a definite shape and molecules are packed closely together

1. which state of matter does not have a definite volume or shape?

a. liquid
b. solid
c. gas
d. all the above

1. what happens to the particles in matter when heat is taken away?

a. the particles disappear
b. the particles gain energy and speed up
c. the particles lose energy, slow down and move closer
d. there is no change

1. what is the kinetic theory of matter?

a. all matter is made up of atoms that are in constant motion
b. all matter is made of atoms that are sometimes in motion
c. all matter is made of atoms that never move
d. matter is not made of atoms

Explanation:

Question 36

In the element's box (like Xenon here), the atomic mass is the bottom number (131.293 for Xe), while the top number (54) is atomic number. So option A says it's at the bottom, which matches. Option B is wrong (top is atomic number), C is incorrect (atomic mass isn't sum of top and bottom numbers in that way), D describes how atomic mass is calculated (protons + neutrons) but not where it's located.

The three main states of matter are solid, liquid, and gas. Juice is a liquid - based mixture, not a state of matter. Options B and C are missing one state. So D is correct.

Solids have definite shape (so C is part of it) and their molecules are packed closely (so B is part of it). Option A is for liquids. Option D combines both correct characteristics (definite shape and closely packed molecules), which is more complete than B or C alone.

Answer:

A. At the bottom

Question 37