HC Unit 7 (Ch 11) Test

The 47th electron of silver, Ag, will be in a d orbital.

(a)  

• True
• False

The lowest energy level to allow d orbitals is the fourth energy level.

(a)  

• True

• False

Where could an electron be located in the representation?

• Point A

• Point B

• Point C

• Point D

The lowest possible energy state of an atom is called its (a)   state.

• ground
• base

• neutral

• excited

• None of the above

Which of the following has the smallest atomic radius?

(a)  

• F
• N

• S

• Br

• Cl

The form of EMR that has more energy per photon than X-rays is

(a)  

• gamma rays
• radio waves

• microwaves

• infrared rays

• None of the above

Sodium has how many electrons in its outermost principal energy level?

(a)  

• 8

• 11

• 1
• 2

• 6

Which THREE of the following statements about the periodic table are true?

• Elements in the same column have similar reactivities because their valence electrons tend to be located in the same types of orbitals.

• It takes more energy to remove an electron from lithium than from cesium because the valence electrons in lithium are located closer to the nucleus.

• Fluorine is the most electronegative element due to its size and nuclear charge.

• The atomic size of the elements increase going across a period from left to right because the number of electrons increase, so they are located further from the nucleus.

The noble gases contain how many valence electrons?

(a)  

• 0

• 7

• 1

• 8
• None of the above

How many unpaired electrons does the element cobalt (Co) have in its lowest energy state?

(a)  

• 3
• 0

• 1

• 2

• 7