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Unit 1: Investigating Atoms and Periodic Table Flashcards | StudBud
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Unit 1: Investigating Atoms and Periodic Table
Unit 1: Investigating Atoms and Periodic Table
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atomic structure/periodic table arrangement
Flashcards
28 cards
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Questions
28
Answers
1
Where is most of the mass of the atom located?
in nucleus
empty space
electrons
electron cloud
2
How do you calculate neutrons?
atomic mass - atomic #
atomic # - atomic mass
atomic # - electrons
protons + electrons
3
What makes up most of the volume of the atom?
protons
empty space
electrons
nucleus
4
How do you determine atomic mass?
Add up the valence electrons
Add atomic # and # of protons
Add protons and neutrons
Add protons and electrons
5
What is found in the nucleus of an atom?
ions and protons
protons and electrons
protons and neutrons
neutrons and electrons
6
Where are electrons located?
in electron cloud inside the nucleus
the electrons aren't important
in electron cloud surrounding nucleus
bonded to protons in nucleus
7
What is a subatomic particle?
a particle larger than an atom
a particle in an atom: a proton, neutron, or electron
a particle smaller than an atom
a particle having the same charge as a proton and electron
8
When looking at a model of an atom, how do you determine atomic number?
add protons and electrons
count protons or electrons
count protons or neutrons
add protons and neutrons
9
What is the charge of the neutron?
positive
negative
neutral
10
What is the atomic mass of an electron?
1 atomic mass unit
1/2000 atomic mass unit
11
What does "APE" stand for?
atomic mass = protons = electrons
atomic mass = protons + electrons
atomic # = protons = electrons
atomic # = protons + electrons
12
Which subatomic particle determines the atom's identity?
protons
electrons
neutrons
nucleus
13
What group is made of elements that react violently with water?
Group 1: Alkali Metals
Group 18: Noble Gases
Group 2: Alkaline Earth Metals
Group 17: Halogens
14
What is the charge of an electron?
negative
neutral
positive
15
What group is made of non-reactive elements?
Group 18: Noble Gases
Group 17: Halogens
Group 1: Alkali Metals
Group 2: Alkaline Earth metals
16
What is the charge of a proton?
no charge
positive
neutral
negative
17
How do you calculate the number of protons?
mass = protons
atomic # = protons
electrons + neutrons = protons
mass+ atomic # = protons
18
What does "MAN" stand for?
atomic mass - atomic # = neutrons
atomic # - atoms = neutrons
atomic mass + atomic # = neutrons
19
What is the smallest subatomic particle?
Protons
Neutrons
Nucleus
Electrons
20
What is at the center of an atom?
protons
a nucleus of protons and electrons
a nucleus made of protons and neutrons
empty space
21
Which two subatomic particles have the same mass?
neutrons and nucleus
neutrons and electrons
protons and neutrons
protons and electrons
22
Which is a property of metals?
crumbly
hard
dull
soft
23
What is the charge of a nucleus with 12 protons, 12 neutrons, and 12 electrons?
0
+36
+24
+12
24
How many electrons can go on the 1st energy level (orbital)?
2
8
18
32
25
What is a valence electron?
Outer shell electrons that determine reactivity
Electrons on the first energy shell
Electrons in the nucleus
Outer shell electrons that determine identity
26
How do you calculate # electrons?
protons + neutrons = electrons
can't calculate electrons
atomic # = electrons
mass - atomic # = electrons
27
How can you determine the charge of the nucleus?
Count the protons
Count the electron
Add the mass to the atomic #
Count the neutrons
28
What is the mass of protons and neutrons?
1 atomic mass unit
1/2000 atomic mass unit
