Chemistry: Periodic Table (unit 3)

Question 1

How do you determine the number of electrons in an atom?

Accepted Answer

atomic number

Question 2

the ion Na+

Accepted Answer

has lost an electron

Question 3

What do Bohr models tell us?

Accepted Answer

a basic map of where electrons are found

Question 4

A pattern that can be predicted by knowing the location of an element on the p. table is

Accepted Answer

a trend

Question 5

Which group of elements is un-reactive?

Accepted Answer

Noble Gases

Question 6

Which "block" can hold only 2 electrons?

Accepted Answer

S

Question 7

If I change the number of protons...what will I create?

Accepted Answer

a new element

Question 8

Which accurately describes nonmetals?

Accepted Answer

Poor conductors of electricity

Question 9

How many periods are there in the periodic table?

Accepted Answer

7

Question 10

The size of an atom is called the

Accepted Answer

atomic radius

Question 11

What are valence electrons

Accepted Answer

electrons in outer shell

Question 12

What is this picture showing?

Accepted Answer

electron shielding

Question 13

Which group of elements on the periodic table are all gases at room temperature?

Accepted Answer

Noble gases

Question 14

This group wants to gain one valence electron

Accepted Answer

Halogens

Question 15

Electronegativity is

Accepted Answer

how much an atom wants to GAIN an electron

Question 16

Ionization energy increases as you move

Accepted Answer

from left to right, from bottom to top

Question 17

If I change the number of neutrons...what will I create?

Accepted Answer

an isotope

Question 18

If an atom has 28 protons and a mass of 59, how many neutrons does it have

Accepted Answer

31

Question 19

Whats another name for an orbital?

Accepted Answer

electron cloud, shells, levels

Question 20

Which "block" can hold 6 electrons?

Accepted Answer

P

Question 21

If an ion is positive it...

Accepted Answer

lost electron(s)

Question 22

Each horizontal row on the periodic table is called what?

Accepted Answer

Period

Question 23

Which subatomic particles have a mass of 1 AMU?

Accepted Answer

protons and neutrons

Question 24

Ionization energy increase as you move...

Accepted Answer

from left to right

Question 25

How do you determine the number of neutrons in an atom?

Accepted Answer

mass number - atomic number

Question 26

If I change the number of electrons...what will I create?

Accepted Answer

an ion

Question 27

the energy required to remove an electron is called

Accepted Answer

ionization energy

Question 28

Atomic radius increase as you move

Accepted Answer

right to left, top to bottom

Question 29

What is the shortcut for writing out electron configurations?

Accepted Answer

using a noble gas as a starting point

Question 30

An excited state is when...

Accepted Answer

an electron jumps to a higher electron shell

Question 31

How do you determine the number of protons in an atom?

Accepted Answer

atomic number

Question 32

Most elements on the periodic table are classified as __________.

Accepted Answer

Metals

Question 33

Which "block" can hold 10 electrons?

Accepted Answer

D

Question 34

Which properties most accurately describe the element silicon (Si)?

Accepted Answer

Weak conductor of electricity, solid at room temperature

Question 35

Groups on the periodic table are arranged

Accepted Answer

Vertically

Question 36

How are elements in the periodic table organized?

Accepted Answer

Based on physical and chemical properties

Question 37

Which group on the periodic table is the most reactive?

Accepted Answer

Alkali metals

Question 38

If an ion is negative

Accepted Answer

gained electron(s)

Question 39

Which group includes some of the most familiar elements like nickel, iron, and copper?

Accepted Answer

Transition metals

Question 40

Which pair of elements would have similar properties due to the position in the periodic table?

Accepted Answer

Copper (Cu), Gold (Au)

Chemistry: Periodic Table (unit 3)

Questions 40

Chemistry: Periodic Table (unit 3)

Questions 40