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Grade (2)prep
Grade (2)prep
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A review of atomic structure and the periodic table.
Flashcards
41 cards
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Practice quiz
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Questions
41
Answers
1
Element with atomic number higher than....... doesn't lie in nature
67
92
7
118
2
The atom that has abiggest attraction for electrons
Chlorine
Brmoin
Florine
Csium
3
Who organized the first periodic table based the elements' atomic masses?
Dalton
Rutherford
Mendelev
Moseley
4
Halogens are found in what sub-shell or orbital block on the periodic table?
f - block
d - block
s - block
p - block
5
An atom, as shown on the periodic table, is neutral because it contains equal numbers of
neutrons and ions
isotopes and ions
protons and neutrons
protons and electrons
6
Group .......... Contain the biggest sized atoms
1A
18
ZERO
7A
7
Elements on the modern periodic table are arranged according to their _________.
atomic radii
atomic masses
atomic numbers
atomic numbed and way to fill sub level by electrons
8
Each horizontal row on the periodic table is called what?
Period
Group
Inert
Halogen
9
Element lie under Na=11
Potassium=19
Magnesium=12
Li =3
Boron=5
10
Atoms of the same element that have a different number of neutrons are called ____________.
indicators
isomers
ions
isotopes
11
Lie in block........
P
F
d
S
12
Atomic size decreases in groups from up to down
True
False
13
element have same number of levels have the same.....
Properties
Block
Group
Period
14
The periodic table, which is based by atomic number, was developed by ________.
Moseley
Rutherford
Bohr
Mr.mohamed
15
A row on the periodic table is also called a ________.
period
group
neighborhood
family
16
A column on the periodic table can also be called a ________ or a ___________.
group / family
family/ row
period / group
family / period
17
How many neutrons does Rb-85 contain?
37
48
48.468
122
18
The most familiar elements starts in period 4
Non metals
Transition
Semi metals
Alkali
19
How many total electrons does an oxygen ion (O
-2
) contain?
10
6
12
8
20
Block which (P15) founded
d. Block
F. Block
P Block
S Block
21
Transition metals are located in which sub-shell or orbital block on the perioidic table?
p - block
d - block
s - block
f - block
22
How add lanthanide and actinaids
Netwon
Moseley
Bohr
Rather ford
23
The sum of the number of protons and neutrons inside the nucleus is called the __________.
nucleus number
element number
atomic number
mass number
24
The ionic radius of a nonmetal is ________ than the atomic radius of the parent atom.
more polar
larger
less non-polar
smaller
25
Group 18 contain elements are also called ____________.
halogens
alkaline earth metals
alkali metals
noble gases
26
Elements in group 17 are called ____________.
halogens
alkali metals
noble gases
alkaline earth metals
27
Which element has the smallest attraction force for electrons
Na11
Al 13
Si 14
Cl 17
28
Carbon-13 and Carbon-14 are examples of _______________ for the carbon element.
ions
isotopes
indicators
isomers
29
Elements that have chemical and physical properities of both metals and nonmetals are _____.
rare earth metals
transition metals
metalloids
alkali earth metals
30
Elements in groups 3B -------> 2B are called ___________.
transition metals
inner transition metals
alkaline earth metals
metalloids
31
How many total electrons would a ion of magnesium (Mg
+2
) contain?
8
12
10
14
32
Increases atomic size in period.........increase
Metallic properity
Non-metal properity
Protons number
Number of electron
33
Which subatomic particles are located inside the nucelus of an atom?
protons & neutrons
electrons & protons
electrons & neutrons
protons & electrons
34
From image in front of u which element has the smallest size
S
Al
Na
Ar
35
To become a negative ion, an atom must ____________.
gain protons
gain electrons
lose electrons
lose protons
36
Valence electrons are located _________.
in the first orbital outside the nucleus
inside the nucelus
in the outer orbital shell
in between the inner and outer shells
37
The number of protons an atom contains is identified by the ____ ____ on the periodic table.
atomic number
Neutrons number
mass number
group number
38
(Li3) lie in group 1 A because it has
One proton in last level
3 electron in all levels
Equal number from electrons and protons
One electron in last level
39
The ionic radius of a metal is __________ than the atomic radius of the parent atom.
larger
smaller
more non-polar
less polar
40
Most elements on the periodic table are classified as __________.
Nobel gas
Metals
Metaloids
Non metal
41
To become a positive ion, an atom must ___________ .
lose protons
lose electrons
gain protons
gain electrons
