Chemistry Semester 1 Exam Study Guide

Question 1

Match the correct term - kelvin

Accepted Answer

Temperature

Question 2

How is the number of neutrons in the nucleus of an atom calculated?

Accepted Answer

Subtract the number of protons from the mass number

Question 3

Match the correct term - second

Accepted Answer

Time

Question 4

Match the correct term - Kilogram

Accepted Answer

Mass

Question 5

According to the aufbau principle....?

Accepted Answer

Electrons enter orbitals of lowest energy first

Question 6

Atomic size generally..?

Accepted Answer

Increases as you move from top to bottom within a group

Question 7

3 people weigh an object which weighs 2.00 grams, they then all obtain a reading which is 7.32 g these resuts are...?

Accepted Answer

Precise but not accurate

Question 8

In the measurement 0.503 L which digit is the estimated digit

Accepted Answer

3

Question 9

When elements are in the same family it means...?

Accepted Answer

They have similar chemical properties

Question 10

The smallest particle of an element that retains the properties of that element is a(n)...?

Accepted Answer

Atom

Question 11

The atomic number of an element is the total number of which particles in the nucleus?

Accepted Answer

Protons

Question 12

What subatomic particle plays the greatest part in determining the properties of an element?

Accepted Answer

Electron

Question 13

what is the boiling point of water in Farenheight?

Accepted Answer

212

Question 14

Which of the following is true about subatomic particles?

Accepted Answer

Electrons are negatively charged and are the lightest subatomic particle

Question 15

what is the freezing point of water in Celsius?

Accepted Answer

0

Question 16

What is the max number of d orbitals in a principal Energy level

Accepted Answer

5

Question 17

All atoms are...?

Accepted Answer

Neutral number of protons equaling the number of electrons

Question 18

Match the correct term - mole

Accepted Answer

Amount of substance

Question 19

Each period in the periodic table corresponds to...?

Accepted Answer

a principal energy level

Question 20

Which of the following statements are not true?

Accepted Answer

Atoms of isotopes of an element have different numbers of protons

Question 21

Match the correct term - candela

Accepted Answer

Luminous intensity

Question 22

Emission of light from an atom occurs when an electron..?

Accepted Answer

Drops from a higher to a lower energy level

Question 23

The particles that are found in the nucleus of an atom are..?

Accepted Answer

Protons And neutrons

Question 24

How are frequency and wavelength of light related

Accepted Answer

they are inversely proportional

Question 25

true or false? Anions form when an atom gains electrons

Accepted Answer

True

Question 26

Which of the following statements is not true?

Accepted Answer

The mass of an electron is about the same as the mass of a proton

Question 27

How do isoptos of hydrogen 1 and hydrogen 2 differ?

Accepted Answer

Hydrogen 2 has one neautron, hydrogen has none

Question 28

As a result of a discovery of the nucleus by ruthRedford what idea was added to the model of the atom

Accepted Answer

The positive nucleus contains almost all the mass of the atom

Question 29

What types of atomic orbitals are in the second energy level

Accepted Answer

S and p only

Question 30

How many protons electrons and neutrons does an atom with an atomic number of 50 and a mass number of 125 contain

Accepted Answer

50 p 50 e 75 n

Question 31

Which group of measurements are most precise?

Accepted Answer

2.0 g 2.5 g 3.0 g

Question 32

Atoms of the same element have the same...?

Accepted Answer

number of protons

Question 33

which of the following is true about the electron configurations of the noble gases

Accepted Answer

Valence orbitals are completely filled

Question 34

What is the next atomic orbital that will be filled in the series 1s 2s 2p 3s 3p

Accepted Answer

4s

Question 35

Elements that are characterized by the filling of d orbitals are classified as

Accepted Answer

Transition metals

Question 36

What did JJ thompsn discover about the atom

Accepted Answer

Electrons are negatively charged particles that are part of all atoms

Question 37

The modern periodic table is arranged in order of increasing atomic....?

Accepted Answer

Number

Question 38

Isotopes of the same element have diffent...?

Accepted Answer

Numbers of neutrons

Question 39

The light given off by an electric discharge through neon gas is...?

Accepted Answer

emission spectrum

Question 40

What causes the shielding effect to remain constant across a period?

Accepted Answer

Electrons are added to the same principal energy level

Question 41

The quantum mechanical model of the atom

Accepted Answer

Involves the probably of finding an electron in a certain location

Question 42

when an electron moves from a lower to a higher energy level the electron...?

Accepted Answer

Absorbs a quantum of energy

Question 43

what is the boiling point of water in Celsius?

Accepted Answer

100

Question 44

Dalton hypothesized that atoms are individsle and that all atoms of an element are identical, it is now known that...?

Accepted Answer

Atoms are divisible

Question 45

Match the correct term - ampere

Accepted Answer

Electric current

Question 46

In which section of the periodic tale are the least electronegative elements found?

Accepted Answer

Lower left

Question 47

What is the standard body temperature in Celcius?

Accepted Answer

37

Question 48

the electrongetivity on the bottom of a group tends to be...?

Accepted Answer

Lower

Question 49

The atomic mass of an element is the...?

Accepted Answer

Weighted average of the masses of the isotopes of the element

Question 50

In the bohr model of the atom an electron in an orbit has fixed...?

Accepted Answer

Energy

Question 51

what is the freezing point of water in Fahrenheit?

Accepted Answer

32

Question 52

which color of visible light has the shortest wavelength

Accepted Answer

Violet

Question 53

The closeness of a measurement to its true value is a measure to of its...?

Accepted Answer

Accuracy

Question 54

Which statement is true about electronegativity

Accepted Answer

It is a measure of how strongly an atom attracts electrons in a chem bond

Question 55

what is the maximum number of electrons in the second principal energy level

Accepted Answer

8

Question 56

How many energy sub levels are in the second principal energy level

Accepted Answer

2

Question 57

Match the correct term - meter

Accepted Answer

Length

Question 58

The sum of protons and neutrons in an atom called the...?

Accepted Answer

Mass number

Question 59

What is the standard body temperature in Farenheight?

Accepted Answer

98

Question 60

Which of the following is not a part of daltons atomic theory?

Accepted Answer

Atoms are always in motion

Question 61

What is the shape of the 3p atomic orbital

Accepted Answer

Dumbbell

Question 62

Which of the following volumes is the smallest

Accepted Answer

One microliter

Chemistry Semester 1 Exam Study Guide

Questions 62

Chemistry Semester 1 Exam Study Guide

Questions 62