stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Periodic Table 2019-2020 Flashcards | StudBud
Explore
/
Periodic Table 2019-2020
Periodic Table 2019-2020
39 terms
·
StudBud Administration
·
213 plays
A review of atomic structure and the periodic table.
Flashcards
39 cards
F
Practice quiz
P
Host live
L
Questions
39
Answers
1
The number of protons an atom contains is identified by the ____ ____ on the periodic table.
group #
mass #
atomic #
row #
2
The subatomic particle that determines the name of the element is the:
proton
valence electron
nucleus
neutron
3
An atom, as shown on the periodic table, is neutral because it contains equal numbers of
protons and electrons
isotopes and ions
protons and neutrons
neutrons and ions
4
How many neutrons does Rb-85 contain?
48
122
48.468
37
5
Which listing below shows the proper charges of the subatomic particles?
p = +1 n = 0 e = -1
p = +1 n = -1 e = 0
p = -1 n = 0 e = +1
p = 0 n = +1 e = -1
6
Which group of elements are chemically unreactive?
Group 7A/17
group 1A
group 8A/18
all of the above
7
Halogens are found in group 7A/17. What do they have in common?
all of the above
similar physical properties
similar chemical properties
same number of valence electrons
8
A row on the periodic table is also called a ________.
period
group
neighborhood
family
9
An oxygen atom has taken electrons from a calcium atom. What is the new charge of the oxygen atom?
+2
-2
+8
zero
10
Which subatomic particles are located inside the nucelus of an atom?
electrons & neutrons
electrons & protons
protons & electrons
protons & neutrons
11
Which element has 2 valence electrons and is found in Period 4?
CA
C
Be
Ca
12
A column on the periodic table can also be called a ________ or a ___________.
group / family
period / group
family / period
family/ row
13
How many total electrons would a ion of magnesium (Mg
+2
) contain?
8
14
10
12
14
Potassium and sodium have similar physical properties.
True
False
15
Sodium atoms seek to gain electrons to fulfill the Octet rule.
False
True
16
A hydrogen atom mysteriously gained a neutron. It became....
a hydrogen ion
a Helium atom.
a hydrogen isotope
chemically stable with a full outer shell
17
All Group 1A elements are highly reactive metals, EXCEPT ____________.
Carbon
Sodium
Helium
Hydrogen
18
How many total electrons does an oxygen ion (O
-2
) contain?
6
8
12
10
19
Elements that have chemical and physical properities of both metals and nonmetals are _____.
rare earth metals
alkali earth metals
transition metals
metalloids
20
Valence electrons are located _________.
inside the nucelus
in the first orbital outside the nucleus
in between the inner and outer shells
in the outer orbital shell
21
Which group is chemically stable?
halogens
transition metals
noble gases
lanthanides and actinides
22
To become a positive ion, an atom must ___________ .
gain protons
gain electrons
lose electrons
lose protons
23
Elements on the modern periodic table are arranged according to their _________.
first letters
atomic numbers
atomic masses
number of neutrons
24
Elements along the Periodic Table bold staircase are classified as ___________.
alkaline earth metals
nonmetals
noble gases
metalloids
25
Which two elements have the same chemical properties?
C and O
F and Cl
H and He
Li and Be
26
How many Li atoms would bond with one P atom?
1
3
7
5
27
Left to right across a period, metals are more massive than nonmetals.
False
True
28
What is the chemical symbol for Phosphorus?
K
PH
P
Ph
29
Carbon-13 and Carbon-14 are examples of _______________ for the carbon element.
isomers
indicators
ions
isotopes
30
The sum of the number of protons and neutrons inside the nucleus is called the __________.
atomic number
element number
nucleus number
mass number
31
Elements in group 17 have how many valence electrons? ____________.
3
17
1
7
32
Chlorine has 17 protons, 7 valence electrons and 18 neutrons What is its group number?
17/7A
3
18/8A
35
33
The octet rule states that ....
all oxygen atoms have 8 protons.
elements chemically react to acheive a full valence shell
most of an atom is empty space
elements are named based on their proton number
34
Which element is not a metalloid?
Boron
Tellurium
Aluminum
Silicon
35
Elements to the right of the elements touching the bold staircase are classified as:
metals
semimetals
nonmetals
metalloids
36
Atoms of the same element that have a different number of neutrons are called ____________.
isomers
isotopes
indicators
ions
37
To become a negative ion, an atom must ____________.
lose electrons
gain protons
lose protons
gain electrons
38
The average mass of all the isotopes for a given atom is called ___________.
average atomic number
average nuclear mass
average atomic mass
average mass number
39
Which element has similar chemical properties to Oxygen but has two more energy levels?
none of these
C
Se
Ne
