Living By Chemistry Unit 1 Review

Question 1

What is true about most elements?

Accepted Answer

They are solids

Question 2

Which of the following elements is a liquid

Accepted Answer

bromine

Question 3

What is the most stable number of electrons to be in the valence shell?

Accepted Answer

8

Question 4

A filament for a light bulb must conduct electricity. Which element could be useful for this?

Accepted Answer

Tungsten, W

Question 5

What subshells are allowed in the third shell?

Accepted Answer

only s, p & d

Question 6

Where is fusion most likely?

Accepted Answer

The sun

Question 7

Which of the following elements is most reactive?

Accepted Answer

cesium

Question 8

What does the atomic number indicate about an atom?

Accepted Answer

Number of protons

Question 9

What is the only way to change one element into another?

Accepted Answer

Change the number of protons

Question 10

Which of the following elements is a metal?

Accepted Answer

magnesium

Question 11

The copper cycle experiment demonstrated what property?

Accepted Answer

Conservation of matter

Question 12

Why are noble gases called noble gases?

Accepted Answer

They do not react with other elements

Question 13

Which of the following is an example of mass?

Accepted Answer

cloud

Question 14

How many electrons can be in a d subshell?

Accepted Answer

10

Question 15

What is the net result of beta decay?

Accepted Answer

mass stays the same, atomic number increases by 1

Question 16

Which of the following is an intensive property?

Accepted Answer

color

Question 17

Gatorade and other sports drinks contain electrolytes. Would you expect them to conduct?

Accepted Answer

yes

Question 18

An atom of lithium has a mass number of 7. How many neutrons are present?

Accepted Answer

4

Question 19

What is the charge on the oxide ion?

Accepted Answer

-2

Question 20

Who developed the solar system model of the atom?

Accepted Answer

Bohr

Question 21

What is the easiest method for measuring the volume of an irregular shaped object?

Accepted Answer

displacement of water

Question 22

What is the least penetrating form of nuclear radiation?

Accepted Answer

Alpha Particles

Question 23

What is the expression for finding volume from the mass and density of an object?

Accepted Answer

V = m/D

Question 24

What fraction of a decaying element remains after 4 half lives?

Accepted Answer

1/16

Question 25

What does the period that an element is in indicate?

Accepted Answer

Number of electron shells

Question 26

Which has the greater density? Block 1: 15 g of gold. Block 2: 50 g of gold

Accepted Answer

Both have the same density

Question 27

What happened to the Cu2+ ions during the electroplating experiment?

Accepted Answer

They gained two electrons

Question 28

Name the following compound: K2SO4

Accepted Answer

potassium sulfate

Question 29

What is ejected during alpha decay?

Accepted Answer

a helium nucleus

Question 30

What does the symbol "aq" stand for?

Accepted Answer

aqueous solution

Question 31

What is not a property used to categorize elements into the periodic table?

Accepted Answer

density

Question 32

What is the name of a negatively charged ion?

Accepted Answer

anion

Question 33

There are 3 isotopes of Neon, Ne-20, Ne-21, & Ne-22. Which is most abundant?

Accepted Answer

Ne-20

Question 34

What does it mean for an element to be a "p-block" element?

Accepted Answer

the last e- added is placed in the p subshell

Question 35

Why can density be used to help identify a substance

Accepted Answer

it is an intensive property

Question 36

What is the most likely type of bonding if a compound is soluble in water and does not conduct?

Accepted Answer

molecular covalent

Question 37

In general, elements with an even atomic number...

Accepted Answer

have more isotopes than elements with odd atomic number

Question 38

The diagonal line on the isotope graph represents nuclei with

Accepted Answer

same number of protons and neutrons

Question 39

In the terminology "uranium-235" what does the 235 stand for?

Accepted Answer

number of protons + neutrons

Question 40

What is the charge for the phosphate ion?

Accepted Answer

-3

Question 41

Why must a roman numeral be used when writing names of compounds containing transition metals?

Accepted Answer

To indicate the charge on the ion

Question 42

How many valence electrons does an atom of phosphorus have?

Accepted Answer

5

Question 43

What would you expect to see in a bottle labelled "CuSO4(aq)"

Accepted Answer

A blue solution

Question 44

Why do elements in the same column have similar properties?

Accepted Answer

Same # of valence electrons

Question 45

As you move from left to right in the periodic table what happens to the # of core electrons?

Accepted Answer

They stay the same

Question 46

What is the guiding rule for determining the formula of an ionic compound?

Accepted Answer

rule of zero charge

Question 47

What is the formula for iron(III) sulfide?

Accepted Answer

Fe2S3

Question 48

What is the proper electron configuration for aluminum?

Accepted Answer

[Ne]3s23p1

Question 49

What tool would measure volume most accurately?

Accepted Answer

graduated cylinder

Question 50

Who developed the modern periodic table?

Accepted Answer

Mendeleyev

Living By Chemistry Unit 1 Review

Questions 50

Living By Chemistry Unit 1 Review

Questions 50