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Atoms and the Periodic Table
Atoms and the Periodic Table
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Atomic structure, organization of the periodic table
Flashcards
45 cards
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Practice quiz
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Questions
45
Answers
1
How many neutrons does Sodium have?
11
Na
12
22.98977
2
Isotopes are atoms that have the same number of protons, but a different number of...
protons
charges
neutrons
electrons
3
What is the number of valence electrons in an atom of Al?
3
13
10
8
4
Which has the largest atomic size?
C
N
Fr
Be
5
The element is dull, brittle and non-conductive....what is it?
proton
metal
metalloid
non-metal
6
How many valence elctrons does Sulfur have?
7
5
8
6
7
How many neutrons does boron have?
5
10
6
11
8
Which element will Lithium have the most in common with?
oxygen
gold
boron
sodium
9
What group of elements is known as the alkali metals?
Group 2
Group 8
Group 7
Group 1
10
John Dalton's theory said that all atoms of the same element are
the same
different
combined
11
What is the the correct number of valence electrons for the element krypton, Kr.
6
8
4
7
12
Which of these elements are an alkali metal?
Mercury
Copper
Silicon
Lithium
13
The number 8 in the picture refers to
The number of valence electrons in the element oxygen
The atomic mass of oxygen
The atomic number of the element oxygen
The number of neutrons in the element oxygen
14
How many neutrons does boron have?
10
6
11
5
15
What group of elements is known as the Noble Gases?
Group 1
Group 8
Group 2
Group 17
16
What is the overall charge of the NUCLEUS?
negative
neutral
positive
17
How many neutrons does magnesium have?
24
12
13
24.305
18
In what period is this element located?
5
1
2
7
19
Which part of the atom is most of the mass found?
outside the nucleus
nucleus
Elctron cloud
20
What is the charge on a proton?
neutral
No charge
positive
negative
21
What is the number of protons in one atom of silicon?
1
14
2
28
22
Cations have what type of charge?
positive
what?
negative
neutral
23
Two subatomic particles are found in the nucleus. One is the neutron; what is the other one?
positrino
isotope
electron
proton
24
How many electrons does the 1st energy level hold?
2
4
8
6
25
How many valence electrons does an atom need to be stable?
6
4
1
8
26
What happens to electrons in an ionic bond?
Protons are transferred between atoms
Electrons are shared between atoms
Protons are shared between atoms
Electrons are transferred between atoms
27
How many protons are in one calcium atom?
2
20
40
1
28
The element has 13 protons and is a silver, shiny metal. What is it?
aluminum
nitrogen
boron
clorine
29
What element is located in Group 2, Period 2?
Beryllium
Chromium
Carbon
Radium
30
The metals are on the ______ side of the periodic table.
left
middle
right
top
31
Which of these elements are an alkaline earth metal?
sodium
strontium
neon
palladium
32
What is the atomic number of sodium?
11
22.99
23
33
Bohr discovered..
matter is made of atoms
showed electrons moving in a circular pattern
atom is mostly empty space, electrons orbit around the nucleus randomly.
discovered the electron
34
The elements to the left side of the periodic table are known as the
metals
non-metals
metalloids
35
What is an electron's charge?
negative
neutral
positive
36
How many electrons are in one atom of oxygen?
8
15.99
1
16
37
Characteristics of a metal
good conductor, dull, malleable
good conductor, malleable, shiny
does not conduct electricity, malleable, ductile
bad conductor, ductile, brittle
38
What is the atomic mass of magnesium?
12
25
24.3
2
39
What is the charge of a neutron?
negative
neutral
positive
40
How is the Periodic Table arranged today?
by the atomic mass
in the order they were found
by the atomic number
in alphabetical order
41
What do the elements of group 8 have in common?
They are all solids
They are all metals
They are all in compounds
They are all gases
42
What did Bohr discover about the atom?
Orbit of electron
Proton
Nucleus
Neutron
43
Which of these elements are considered an isotope?
Boron
Carbon
Oxygen
Carbon -14
44
How many valence elctrons are in group 2A?
8
4
6
2
45
What does the number 28.086 refer to?
The atomic number of the element silicon
The atomic mass of the element silicon
The number of neutrons in the element silicon
