stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Periodic Table Trends Flashcards | StudBud
Explore
/
Periodic Table Trends
Periodic Table Trends
24 terms
·
StudBud Administration
·
986 plays
Periodic Table Trends, 8th grade science, TEKS 8.5A,B,C
Flashcards
24 cards
F
Practice quiz
P
Host live
L
Questions
24
Answers
1
The vertical columns in the periodic table are known as...
groups
valences
isotopes
periods
2
Fluorine and chlorine are known as halogens and are located in Group 17. The halogens are:
inert gases.
transition metals.
very reactive metals.
very reactive nonmentals.
3
Zinc has an atomic number of 30 and mass of 65. How many electrons are there in a neutral atom?
95
30
65
35
4
Na has 1 e
-
, C has 4 e
-
, F has 7 e
-
, and Ne has 8 e
-
. Which element is the least reactive?
Na
F
C
Ne
5
How are elements arranged in the periodic table?
in order of increasing melting points
alphabetical order
in the order in which they were discovered
in order of increasing atomic number
6
The periodic table is organized so that scientists can easily see:
when each element was discovered.
the density and melting point of each element.
the color of each element.
the atomic number and atomic mass of each element.
7
Every element in the periodic table:
has atoms that are the same size.
is a solid at room temperature.
combines easily with other elements.
has a unique set of properties.
8
Iron has an atomic number of 26 and atomic mass of 56. How many neutrons are there?
82
26
30
56
9
The periodic table shows that the chemical and physical properties of the elements:
are only known for a few elements at this time.
are highly unpredictable and cannot be fully measured.
are unrelated to the size of atoms.
are highly predictable and can be measured.
10
A typical atom of sodium has 11 protons, 12 neutrons, and 11 electrons. What is it's mass #?
23
1
11
12
11
Elements in the same group tend to have similar properties. This is because they have the same
number of total electrons around the nucleus of their atoms.
number of electrons in the outer orbitals of their atoms.
number of neutrons in the nucleus of their atoms.
number of protons in the nucleus of their atoms.
12
Use your periodic table to answer the question: Which element is a nonmetal?
magnesium (Mg)
iron (Fe)
chlorine (Cl)
sodium (Na)
13
The image shows the halogen group. Order the elements in order of increasing reactivity.
F, Cl, Br, I, At
At, I, Br, Cl, F
At, Br, Cl, F, I
F, Cl, I, Br, At
14
The horizontal rows of the periodic table are known as:
periods.
columns.
isotopes.
groups.
15
A lithium atom has 3 protons, 4 neutrons, 3 electrons. What is the atomic number?
7
4
3
10
16
Which element listed is not a highly reactive metal?
potassium (Group 1)
sodium (Group 1)
magnesium (Group 2)
carbon (Group 14)
17
Argon has a an atomic number of 18 and a mass number of 40. How many protons does it have?
22
18
58
40
18
Beryllium, magnesium, and calcium are in Group 2. What else do they have in common?
They are all noble gases.
They all have the same atomic mass.
They all have the same atomic number.
They are all metals.
19
Group 18 contains nonreactive elements like helium, neon, and argon. The group name is ...
transition metals
alkali metals
noble gases
halogens
20
A typical beryllium atom has 4 protons, 5 neutrons, 4 electrons. What is the atomic number?
13
4
5
9
21
A periodic table shows elements X and Y. If atomic number of X is 3, what is the atomic # of Y?
19
25
5
7
22
Which list contains the three elements that are most alike in their chemical properties?
Li, Na, K
O, F, Ne
H, He, Li
Li, Mg, Sc
23
The elements in the periodic table are placed in order based on:
the order in which they were discovered.
the number of neutrons in their atoms.
the number of different isotopes they have.
the number of protons in their atoms.
24
Why is the periodic table so useful to scientists?
It contains the recipes for a different kinds of mixtures.
It reminds them what the elements look like.
It's used to predict how elements will react to each other.
It lists chemical formulas for all the different compounds.
