Ductile, Malleable, good conductors of electricity and thermal energy.

Why would it be difficult to determine the properties of a new synthetic element?

The element's nuclei would break apart very quickly

What is malleability?

Can be easily hammered into thin sheets

Negatively charged subatomic particle around the nucleus

What did Ernest Rutherford discover about the atom?

Positive charge in the nucleus of the atom

What is the atomic number?

the number of protons in the nucleus

Ductility is the ability of metal to

bend or be pulled into thin wires

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Ch.4 Elements & The Periodic Table

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Questions 25

Answers

1
In 1896, Antoine Henri Becquerel, discovered _?
Radioactivity
Binomial Nomenclature
The Theory of Relativity
The Theory of Evolution
2
Who discovered the electron?
Rutherford
Dalton
J. J. Thompson
Mrs. Vedvick
3
Elements in the same group on the periodic table have similar
Atomic Numbers
Colors
Sizes
Properties
4
The first Periodic Table was created by:
Dmitri Mendeleev
Amadeo Avogadro
Ernest Rutherford
Henry Mosely
5
How many periods on the periodic table
3
5
7
6
6
~ Metals Are.. ~
liquid at room temperature and are brittle
Ductile, Malleable, good conductors of electricity and thermal energy.
found least on the periodic table
Lava, Dirt, Water, Moss, Flowers
7
Noble gases are inert or nonreactive because they have
a superiority complex.
no atomic mass.
no charge.
a full valence shell.
8
Why would it be difficult to determine the properties of a new synthetic element?
The element would not fit in the periodic table
The element would lack properties of ordinary elements
The element's nuclei would break apart very quickly
The element would combine the properties of the nuclei
9
What is malleability?
Can be hammered into bed sheets
Is shiny
Can be easily hammered into thin sheets
Can hammer into wires
10
The alkali metals are the ____ reactive metals.
Least
Alkaline Earth Metals
Alkali Metals
Most
11
What is an electron?
A measurement for energy
Neutral subatomic particle in the nucleus
Positively charged particle in the nucleus
Negatively charged subatomic particle around the nucleus
12
Most elements on the periodic table are classified as __________.
Metalloids
Nonmetals
Gases
Metals
13
What did Ernest Rutherford discover about the atom?
Positive charge in the nucleus of the atom
The atom is a sphere
The negatively charged electron
The charge of the electron
14
What unit do we measure atomic mass by?
amu
a
mL
gram
15
How is the modern periodic table arranged?
Increasing atomic mass
increasing valence electrons
increasing energy levels
Increasing atomic number
16
What is the atomic number?
The number of neutrons in the nucleus
The number of electrons in the electron cloud
the number of protons in the nucleus
The number of protons in the electron cloud
17
The original Periodic Table was arranged by order of
decreasing atomic mass
decreasing atomic number
increasing atomic mass
increasing atomic number
18
Where are groups in the periodic table?
Top half
Vertical columns
Bottom half
Horizontal rows
19
Who developed the atomic theory?
John Dalton
Mr. Steffen
J.J. Thomson
Ariana Grande
20
What groups are transition Metals
3-12
1-2
14-18
4-18
21
Which of the following is NOT a type of radioactive decay?
Delta
Beta
Alpha
Gamma
22
Ductility is the ability of metal to
get hot
be hammered out
change state
bend or be pulled into thin wires
23
What is the charge of a proton?
Neutrons
Negative
idk cause i'm stupid
Positive
24
How do you get Atomic mass?
Proton + Cloud
Proton + Neutron
Cloud + Neutron
Protron and Electron
25
Halogens (Bromine, Chlorine, Flourine)
Group 18
Group 19
Group 17
Group 16

Ch.4 Elements & The Periodic Table Flashcards | StudBud