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Atoms & The Periodic Table
Atoms & The Periodic Table
29 terms
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Questions
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Answers
1
The number of protons in an element is equal to the number of
electrons
neutrons
total particles
2
The categorie of elements that make up the "stairstep" on the right side of the periodic table are called
alkaline earth metals
noble gases
metalloids
halogens
3
What is the approximate mass of protons and neutrons?
they have a negative mass
approximately 1 amu
0 amu
they are so tiny they don't really have a mass
4
When looking at the periodic table, "groups" or "families" are
at the very bottom of the table
rows (going across)
the columns (going up and down)
categories throughout the table
5
The elements in groups 3-12 (the middle of the periodic table) are called
metalloids
noble gases
transition metals
halogens
6
This group of elements are all gases, are many times used in lighting, and have 7 valence electrons
alkali metals
transition metals
halogens
noble gases
7
The group of elements that have 8 valence electrons and are on the far right side of the periodic table are called
alkaline earth metals
noble gases
halogens
metalloids
8
What type of charge does a proton have?
positive
neutral
negative
9
All elements in the first group, the alkali metals (far left) have how many valence electrons?
8
4
1
3
10
Silicon is in group 14. How many valence electrons does it have?
2
8
4
1
11
Boron is in group 13. How many valence electrons does it have?
8
3
4
7
12
Which category of elements are solids or gases, have low melting/boiling points, and are insulators?
metals
nonmetals
metalloids
13
How many protons does Silicon have?
14
28
29
7
14
Where can you find the electrons in an atom?
right next to the neutrons
in the nucleus
floating in "areas of probability" around the nucleus
there are no electrons in an atom
15
How many electrons does Boron have?
5
11
16
6
16
The maximum number of valence electrons an element is
2
6
8
10
17
What is the name of the elements that are in group 18 on the periodic table, are gases and have 8 valence electrons?
alkaline earth metals
halogens
noble gases
transition metals
18
What is the name of the elements that are in groups 3-12, are mostly stable, and commonly used in society?
halogens
transition metals
rare earth metals
noble gases
19
Which category of elements are solid (except Hg), have a high melting/boiling point, and are malleable?
metalloids
nonmetals
metals
20
How many protons are in Boron?
10
11
6
5
21
What is the approximate mass of electrons?
(0 amu) they are so tiny they don't really have a mass
approximately 1 amu
5 amu
they have a negative mass
22
What is the name of the elements that are in group 1, have 1 valence electron, and are very reactive?
halogens
rare earth metals
transition metals
alkali metals
23
What type of charge does a neutron have?
positive
negative
neutral
24
When looking at the periodic table, "periods" are
categories throughout the table
rows (going across)
at the very bottom of the table
the columns (going up and down)
25
Which category of elements are mostly solids, have varying melting/boiling points, and are semiconductors?
metals
metalloids
nonmetals
26
What is the name of the elements in group 17 that have 7 valence electrons and can be used as disinfectants?
alkaline earth metals
halogens
alkali metals
rare earth metals
27
What type of charge does an electron have?
neutral
negative
positive
28
What is the atomic mass of Boron?
B
5
10
11
29
What is the atomic symbol for Silicon?
14
SI
28
Si
