3. When elements are arranged in order of increasing atomic number, there is a repeating pattern to their physical and chemical properties.

Which term does this statement define?

Responses

periodic table
periodic table

periodic law
periodic law

electron configuration
electron configuration

ionization level
4. Unless otherwise instructed, you may use the periodic table in the Chemistry: Problems and Solutions book for this test.

Which statement is true about elements in a period on the periodic table?

Responses

They have different properties that repeat across the next period.

They have different properties that repeat across the next period.

They have similar properties.

They have similar properties.

They have similar names.

They have similar names.

They have different properties that show no pattern
5. Which element has the same number of energy levels as bromine (Br) and the same number of valence electrons as barium (Ba)?

Responses

potassium (K)
potassium (K)

beryllium (Be)
beryllium , left parenthesis uppercase B lowercase e right parenthesis

calcium (Ca)
calcium , left parenthesis uppercase C lowercase a right parenthesis

cadmium (Cd)
6. Which element has six energy levels?

Responses

sodium (Na)
sodium , left parenthesis uppercase N lowercase a right parenthesis

cesium (Cs)
cesium , left parenthesis uppercase C lowercase s right parenthesis

potassium (K)
potassium (K)

rubidium (Rb)
7. Which element has the most properties in common with beryllium (Be)?

Responses

osmium (Os)
osmium , left parenthesis uppercase O lowercase s right parenthesis

chromium (Cr)
chromium , left parenthesis uppercase C lowercase r right parenthesis

calcium (Ca)
calcium , left parenthesis uppercase C lowercase a right parenthesis

lithium (Li)
8. Which element has the same number of valence electrons as oxygen (O)?

Responses

neon (Ne)
neon , left parenthesis uppercase N lowercase e right parenthesis

fluorine (F)
fluorine (F)

sulfur (S)
sulfur (S)

nitrogen (N)
9. What happens to the atomic size of the elements as one goes from the top to the bottom of a group?

Responses

Atomic size decreases as one moves from top to bottom in a group.

Atomic size decreases as one moves from top to bottom in a group.

Atomic size increases as one moves from top to bottom in a group.

Atomic size increases as one moves from top to bottom in a group.

Atomic size changes randomly as one moves from top to bottom in a group.

Atomic size changes randomly as one moves from top to bottom in a group.

Atomic size stays the same as one moves from top to bottom in a group.
10. Which notation represents the largest atomic radius?

Responses

F−
uppercase F superscript minus end superscript

Cl−

uppercase C lowercase l superscript minus end superscript,

F

F

Cl
11. Which element has the lowest first ionization energy?

Responses

Fr
uppercase F lowercase r

Rb
uppercase R lowercase b

F

F

Li
12. Which elements have properties similar to those of astatine (At)?

Responses

F, Br, I
F, , uppercase B lowercase r, , I

Ar, S, P
uppercase A lowercase r, , S, P

F, Ar, Ne
F, , uppercase A lowercase r, , , uppercase N lowercase e

Na, Mg, Al
13. How many valence electrons are in the outermost shell of all noble gases except helium?

Responses

1

1

4

4

7

7

8

14. Francium must lose one electron to get a full outer shell.

What is the name of the group to which francium belongs?

Responses

alkali metal

alkali metal

halogen

halogen

alkaline earth metal

alkaline earth metal

noble gas
15. What is the electron configuration of an electrically neutral halogen?

Responses

1s22s22p5
1 s squared 2 s squared 2 p to the power of 5

1s12s22p63s23p63d14s2
1 s to the power of 1 2 s squared 2 p to the power of 6 3 s squared 3 p to the power of 6 3 d to the power of 1 4 s squared

1s22s1
1 s squared 2 s to the power of 1

1s22s22p2