How are the elements organized on the Periodic Table?

Elements are ordered by atomic number

To find the number of neutrons, you must

subtract the atomic number from the atomic mass

Atoms of the SAME element that have extra NEUTRONS

What does the atomic mass number of an element tell us?

The number of neutrons & protons in one atom of that element

Negatively charged subatomic particle around the nucleus

A way to tell where an electron is traveling.

define valence electrons

the electrons in the outermost shell of an atom

Group one of the Periodic Table

The tendency of an element to react is closely related to...

the number of valence electrons in atoms of the element.

What did John Dalton contribute to chemistry?

Pioneered atomic theory with the idea that atoms have weight

What does the atomic number do?

Tell the amount of electrons (starting point) and protons

Where are the non metals

On the right of the periodic table

The transuranium elements

are the elements with atomic numbers above 92.

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Ch. 16 & 17 Review

34 termsStudBud Administration60 plays

Physical science review (Chem)

Flashcards34 cardsFPractice quizPHost liveL

Questions 34

Answers

1
Most of the elements on the periodic table are?
radioactive
nonmetals
metals
metalloids
2
This is a Lewis dot structure for?
Carbon
Cesium
Cadmium
Chlorine
3
The most reaction metals on the periodic table are the...
Transition Metals
Alkali Metals
Halogens
Alkaline Earth Metals
4
How are the elements organized on the Periodic Table?
Elements are grouped by color
Elements are ordered by atomic weight.
Elements are ordered by atomic number
Elements are arranged alphabetically.
5
To find the number of neutrons, you must
atomic number - atomic mass
subtract the atomic number from the atomic mass
subtract the atomic mass from the atomic number
protons - electrons
6
The elements in a column on the periodic table
are in the same period.
have very similar chemical symbols.
have the same atomic mass.
have similar properties.
7
What are isotopes?
Atoms of the SAME element that have extra PROTONS
Electrons gained or lost that causes an atom to gain energy
Atoms of the SAME element that have extra NEUTRONS
Atoms of DIFFERENT elements that have extra ELECTRONS
8
What does the atomic mass number of an element tell us?
The number of protons & electrons in an atom of that element
The number of electrons in one atom of that element
The number of neutrons & protons in one atom of that element
The number of neutrons in one atom of that element
9
Which of the following is the lewis dot structure of Oxygen
picture D
picture A
picture B
picture C
10
Mendeleev made the first periodic table, arranging the elements by their?
Shoe size
atomic mass
atomic number
smell
11
What is an electron?
Positively charged particle in the nucleus
Neutral subatomic particle in the nucleus
Negatively charged subatomic particle around the nucleus
A measurement for energy
12
The dots in Lewis Dot Structures represent the _____ _____.
valence electrons
atomic number
mass number
period number
13
An electron cloud...
Is a special Electron that forms a cloud of electricity
Is a model of an electron.
Is a wire for a light switch.
A way to tell where an electron is traveling.
14
How many periods are there on the Periodic Table?
18
3
8
7
15
John Dalton believed that...
The atom is a hard sphere
Atoms do not exist
Aristotle was a loser
16
define valence electrons
a diagram that shows all electrons
the Bohr diagram
the periodic table
the electrons in the outermost shell of an atom
17
Name that Bohr Model
Sodium
Magnesium
Potassium
Aluminum
18
Alkali Earth Metals
Group one of the Periodic Table
Group two of the Periodic Table
Group four of the Periodic Table
Group three of the Periodic Table
19
What makes an element unique?
The number of electrons
The number of neutrons
The number of protons
The number of neutrons and electrons
20
Periods Go?
Across
Diagonal
Up and Down
21
The tendency of an element to react is closely related to...
attraction between its atoms.
the ration of protons to neutrons in atoms of the element.
the number of valence electrons in atoms of the element.
its atomic mass.
22
What element is this a Bohr model of?
Nitrogen
Boron
Oxygen
Carbon
23
What did John Dalton contribute to chemistry?
He refused to believe any other theory except his own
Pioneered atomic theory with the idea that atoms have weight
Made the idea of atoms more plausible
Made the idea of atoms more applicable
24
Find the number of neutrons in Si-27
27
14
13
30
25
Transuranium elements are _______.
are in the same family as uranium.
smaller than uranium.
just before uranium on the periodic table.
larger than uranium.
26
Where is the Noble Gases located on the Periodic table?
2nd Column
18th Column
13th Column
5th Column
27
What does the atomic number do?
Tell the amount of just neutrons
Tell the amount of electrons (starting point) and protons
Tell the amount of just electrons
Tell the amount of just protons
28
Alkaline earth metals
in group 18
in group 17
in group 2
in group 1
29
Where are the non metals
On the zig zag line
On the left
On the right of the periodic table
30
How do you find the mass number of an element?
# of protons
protons + neutrons
group #
mass - protons
31
How many valence electrons are in a full valence shell?
1
8
4
10
32
The transuranium elements
are sometimes radioactive
all of the answers
occur in nature
are the elements with atomic numbers above 92.
33
Rutherford thought that atoms had a ________ center
Neutral
Electric
Positive
Negative
34
What is the subatomic partic with a negative charge
Neutron
Electron
Atom
Proton

Ch. 16 & 17 Review Flashcards | StudBud