Unit 1 Review - Atomic Structure & The Periodic Table

Question 1

Which element has the abbreviated configuration [Xe] 6s2 4f14 5d8 ?

Accepted Answer

Platinum

Question 2

What is the isotope name for an atom with 19 protons, 19 electrons, and 20 neutrons?

Accepted Answer

Potassium-39

Question 3

What type of radiation particle has a negative charge?

Accepted Answer

Beta

Question 4

What kinds of atoms have low ionization energies?

Accepted Answer

Atoms with large radii

Question 5

Another name for group 17 elements is the...

Accepted Answer

halogens

Question 6

Which of the following elements does not have a measured value for electronegativity?

Accepted Answer

Neon

Question 7

According to the Aufbau principle which sub-level comes after the 3p?

Accepted Answer

4s

Question 8

A graduated cylinder has numbers for every 5 mL and lines for every 1 mL. To what decimal place should it be read?

Accepted Answer

Nearest 0.1 mL

Question 9

How many neutrons are there in the isotope Sulfur-37?

Accepted Answer

21

Question 10

Which of the following is not true about nuclear material?

Accepted Answer

The sun is powered by nuclear fission (the splitting of large atoms).

Question 11

A student determined the density of lead to be 12.4 g/mL. Literature values suggest 11.3 g/mL. Possible reason why?

Accepted Answer

Some water splashed out when dropping the lead into the cylinder.

Question 12

What type of atomic orbital has a "dumbbell" shape.

Accepted Answer

p

Question 13

In the (un-hybridized) orbital diagram for Carbon how many unpaired electrons are there?

Accepted Answer

2

Question 14

What is the name of the element with 20 protons?

Accepted Answer

Calcium

Question 15

What is the elemental symbol for Gold?

Accepted Answer

Au

Question 16

Which of the following is a false belief Dalton had about atoms?

Accepted Answer

They are indivisible

Question 17

If Radium-226 underwent alpha decay, what would be the resulting isotope?

Accepted Answer

Radon-222

Question 18

How many electrons are there in a neutral atom of Phosphorous?

Accepted Answer

15

Question 19

The chart shows the successive ionization energies for boron. Why is there a huge jump for the 4th electron?

Accepted Answer

The 4th electron is in a different energy level closer to the nucleus.

Question 20

The graph shows a relationship between mass and volume for a substance. Which of the following is true?

Accepted Answer

Mass and volume have a direct relationship

Question 21

Which element has the symbol Sb?

Accepted Answer

Antimony

Question 22

Which of the following elements would have chemical properties most similar to neon?

Accepted Answer

argon

Question 23

Which of the following elements would have the largest atomic radius?

Accepted Answer

Sodium

Question 24

Which of the following properties of a metal means it can be drawn out into a thin wire?

Accepted Answer

ductile

Question 25

On the periodic table, atomic radius increases as you go...

Accepted Answer

Down and to the left

Question 26

If 90% of element X is X-24 and the other 10% is X-26, what is the atomic mass for element X?

Accepted Answer

24.2

Question 27

Which of the following would require the most energy to remove an electron from?

Accepted Answer

Zn+2

Question 28

Which subatomic particle did Thompson identify with his cathode ray experiment?

Accepted Answer

Electron

Question 29

What is the correct abbreviated electron configuration for Titanium?

Accepted Answer

[Ar] 4s2 3d2

Question 30

The average mass of an elements isotopes, weighted by their relative abundance is called...

Accepted Answer

atomic mass

Unit 1 Review - Atomic Structure & The Periodic Table

Questions 30

Unit 1 Review - Atomic Structure & The Periodic Table

Questions 30