Democritus was known for

creating the term atom, meaning indivisible

An element that is shiny and conducts heat and electricity well

Positively charged particle in the nucleus

Neutal subatomic particle in the nucleus

Negatively charged subatomic particle around the nucleus

is made of more than one kind of atom

What does the atomic number identify?

The number of protons of a given atom

Large molecules made of smaller molecules

An element with the same properties as metals and nonmetals

Which are examples of mixtures?

fruit-cocktail, roof shingle, saltwater

Why are alkali metals so reactive?

They want to get rid of one electron

studbud

Atoms and the Periodic Table

40 termsStudBud Administration1,316 plays

Imported from external platform

Flashcards40 cardsFPractice quizPHost liveL

Questions 40

Answers

1
How many neutrons does neon have?
12
10
20
11
2
Democritus was known for
discovered the nucleus
creating the term atom, meaning indivisible
discovered the electron
discovered the proton
3
Which of these is a transition metal?
tin
nickel
calcium
sodium
4
Most elements on the periodic table are ____
nonmetals
gases
metals
5
Is water a molecule or a compound
neither
compound
molecule
both
6
What is a metal?
An element that is dull and brittle
An element that is shiny and conducts heat and electricity well
An element that is a good heat conductor, not electricity
An element that conducts heat and electricity poorly
7
What is a proton?
Positively charged particle in the nucleus
Negatively charged particle around the nucleus
Neutral particle in the nucleus
A measurement for energy
8
Which are examples of mixtures?
air
water
table sugar
table salt
9
Is O₂a molecule,mixture,or compound,or atom
Mixture
Molecule
Compound
Atom
10
Who discovered the proton?
Chadwick
Rutherford
J. J. Thompson
Mrs. Williams
11
Atomic Number
28
24
51.9961
Cr
12
How many neutrons will this element have?
11
6
5
10.8
13
The atomic mass is:
neutrons
protons + neutrons
protons
electrons
14
What is a neutron?
Positively charged subatomic particle in the nucleus
Neutal subatomic particle in the nucleus
Negatively charged subatomic particle around the nucleus
A measurement for energy
15
How many neutrons will this element have?
13
9
4
5
16
How many electrons does gold have?
79
197
118
3.14159
17
What is an electron?
Positively charged particle in the nucleus
Negatively charged subatomic particle around the nucleus
Neutral subatomic particle in the nucleus
A measurement for energy
18
A compound
is made of more than one kind of atom
is made when two of the same atoms bond
cannot be broken down into smaller parts
has the same properties of its atoms
19
How many hydrogen atoms are in glucose (C6H12O6)?
12
2
9
6
20
How many Manganese, Mn, atoms are present?
1
3
4
2
21
How many protons will this element have?
12
5
6
7
22
Who discovered the electron?
Chadwick
J. J. Thompson
Mrs. Williams
Rutherford
23
The periodic table was organized by:
Professor Xavier
Hawking
Einstein
Mendeleev
24
How many electrons does magnesium have?
13
11
12
24
25
An example of a compound would be
Sugar
Sodium
Sulfur
Salt
26
What does the atomic number identify?
The number of electrons of a given atom.
The number of neutrons of a given atom.
The number of protons + neutrons of a given atom.
The number of protons of a given atom
27
What is a polymer?
Organic molecules
Large molecules made of smaller molecules
The Greek God whom the Polymer Disease was named after
5 bonds of nucleic acid
28
What is a metalloid?
An element that conducts heat and electricity poorly
An element with the same properties as metals and nonmetals
None of the above
An element that is shiny and conducts heat and electricity
29
Which of these is a metalloid?
Sulfur
Neon
Uranium
Silicon
30
Which are examples of mixtures?
silicon, magnesium, calcium
gold, silver, carbon
tin, lead, zinc
fruit-cocktail, roof shingle, saltwater
31
All atoms are :
large and heavy
dense
mostly space
compact
32
How many neutrons does this element have?
92
146
147
136
33
Why are alkali metals so reactive?
They are afraid of water
They have enough electrons (full shell)
They want one more electron
They want to get rid of one electron
34
Atomic Mass
54
131.293
Pizza
Xe
35
How many protons does this element have?
174.947
71
+3
36
How many atoms of Hydrogen are in Water (H2O)?
0
2
3
1
37
metal, nonmetal, or metalloid
metalloid
nonmetal
metal
38
Noble gases are generally...
Unreactive
Malleable
Brittle
Semiconductor
39
Cotton and wool are examples of..
Polymers from animals
Natural polymers
Man made polymers
Polymers from plants
40
What is the atomic number?
109
268

Atoms and the Periodic Table Flashcards | StudBud