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Atoms, Electrons, and Periodic Table Basics (8.5ABC) Flashcards | StudBud
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Atoms, Electrons, and Periodic Table Basics (8.5ABC)
Atoms, Electrons, and Periodic Table Basics (8.5ABC)
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#atoms, #reactivity, #7th, #8.5A, #8.5B, #8.5C, #science
Flashcards
29 cards
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Questions
29
Answers
1
Which chart accurately describes a proton?
B
A
C
2
How many neutrons does an atom of Lithium-7 have?
4
1
7
3
3
How many protons does an atom of Potassium have?
20
39
40
19
4
Which of these elements is most reactive?
Neon
Boron
Beyrllium
Fluorine
5
Which of these elements reacts similarly to potassium, but has a smaller atomic mass?
Rubidium
Calcium
Argon
Sodium
6
Which of the following has the greatest mass?
nucleus
electron
neutron
proton
7
Is the atom pictured reactive or nonreactive?
reactive
nonreactive
8
Which part of the atom has a negative charge?
Neutron
Electron Cloud
Proton
Nucleus
9
How many valence electrons make an atom unreactive?
2
7
8
1
10
What is the charge of the nucleus in an atom of Titanium?
+22
-22
+48
0
11
What is the atomic mass of the most common form of this element?
38
40
39
19
12
Reactivity of an atom is determined exclusively by its...
number of protons
number of valence electrons
number of energy levels
total number of electrons
13
What is the overall charge of an atom of Xenon?
-54
54
0
131
14
If you change the number of protons in an atom, then you change its...
energy
identity
valence
reactivity
15
An atom has 11 protons, 12 neutrons, and 11 electrons. What is its charge?
+11
-1
+1
0
16
If an atom has 80 protons, 121 neutrons, and 80 electrons, what element is it?
Mercury
Aluminum
Gold
Cobalt
17
How many electrons can fit in the first energy level?
1
2
4
8
18
What is the total number of electrons in a neutral atom of Phosphorus?
15
5
16
31
19
Is the element pictured reactive or unreactive?
reactive
unreactive
20
The second energy level of an atom can hold how many electrons?
10
4
8
2
21
In a sodium atom, how many energy levels contain electrons?
3
2
4
1
22
Which element is represented in this picture?
Ca
Cl
C
C
23
Where are valence electrons found?
nucleus
outside the atom
farthest energy level from the nucleus
electron cloud
24
How many valence electrons does Carbon have?
14
12
6
4
25
Which element will react the same as Magnesium, but has a greater mass?
Be
Ca
Na
Li
26
Which of the following is most similar to Nitrogen (N) in terms of chemical properties?
Neon
Silicon
Phosphorus
Carbon
27
The identity of an atom is determined by
valence electrons
atomic mass
electrons
protons
28
What do periods in the periodic table indicate?
number of valence electrons
number of neutrons
number of energy levels
number of protons
29
The atomic mass of an atom is determined by which two particles?
Protons, neutrons
Neutrons, electrons
Protons, electrons
Megatron, Optimus
