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Atoms and Periodic Table 2021 Flashcards | StudBud
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Atoms and Periodic Table 2021
Atoms and Periodic Table 2021
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1
What is the charge of a electron?
it changes
neutral
negative
postive
2
a basic substance on Earth that cannot be broken down any further is called
matter
compound
element
molecule
3
how many groups/families are in the periodic table?
7
15
9
18
4
how many neutrons does beryllium have?
4
13
5
9.012
5
How can you tell how many elements a compound has?
count all the letters
count all the capital letters
6
When drawing a Bohr model of an atom, how many electrons can go on the first shell?
2
18
8
6
7
How many electrons does nitrogen have?
7
0
21
14
8
Where are the neutrons located?
outside the nucleus
outside the electron cloud
inside the nucleus
inside the protons
9
a row in the periodic table is referred to as
period
line
group/family
bunch
10
Who is Dmitri Mendeleev?
Scientist who discovered most of the elements
Scientist who organized the elements by properties
Scientist who discovered how to compound elements
Scientist who discovered the subatomic particles
11
When drawing a Bohr model of an atom, how many electrons can go on the second and third shells?
18
2
8
6
12
What does the atomic number represent?
the amount of protons in an atom
All the subatomic particles added up
the amount of protons and neutrons in the atom
the amount of neutrons in that atom
13
What are the subatomic particles of an atom?
protons, nucleus, electrons
protons and neutrons
protons, neutrons, electron cloud
protons, neutrons, electrons
14
How many protons does nitrogen have?
14
21
7
0
15
A cloumn in the periodic table is really called a
bunch
line
period
group/family
16
What is the mass of a proton?
1 amu
1/1000 amu
1/2000 amu
2 amu
17
What is the mass of beryllium?
13.012 amu
4 amu
5 amu
9.012 amu
18
How can you find the mass of an atom?
count the number of protons
add up the number of electrons
add up the number of protons and electrons
add up the number of protons and neutrons
19
How many periods are on the periodic table?
15
18
9
7
