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Periodic table
Page 8
Questions (1,352)
An element is highly conductive, highly reactive, soft, and lustrous. The element most likely belongs to which group?(1 point)
A.
2 answers
asked by
Anonymous
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How did Mendeleev come up with the first periodic table of the elements?(1 point)
Responses He arranged the elements by different
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asked by
blu
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Which description best describes what happens in a period?
Properties of elements gradually change across this category in a
3 answers
asked anonymously
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Chromium, calcium, and potassium are near each other on the periodic table and have some common characteristics but differ in
2 answers
asked anonymously
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Atoms of elements at the top of a group on the periodic table are smaller than the atoms of elements at the bottom of the group.
2 answers
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An atom of element X has one more shell of electrons than an atom of beryllium, but it has one less valence electron than
2 answers
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Moving from the element with atomic number 10 to atomic number 11 on the periodic table, there is a change in reactivity. In
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molly
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Which element matches this Groups characteristics and properties?
Is solid and dense at room temperature Is shiny Has atoms with
2 answers
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Which two elements on the periodic table have the same number of electron shells?
A. Potassium (K #19) and Strontium (Sr #38) B.
1 answer
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Which element is not a metal?
A. Period 5, Group 14 B. Period 2, Group 1 C. Period 5, Group 16 D. Period 6, Group 2
1 answer
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Which element is a metal?
A. Period 5, Group 17 B. Period 2, Group 13 C. Period 3, Group 2 D. Period 6, Group 18
1 answer
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Interesting facts about group 2.
1 answer
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If the Groups on the periodic table were __________ (superheroes, sports teams, etc.) which group would be the winner and why?
1 answer
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why the elements in group 1 share many of the same properties
1 answer
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Based on the information from the periodic table, which mistake did Darnell make on his diagram?
a Nitrogen should have eight
2 answers
asked by
anon
160 views
Why are sodium and potassium in the same group on the periodic table?
A. They have similar atomic weights B. They have similar
1 answer
asked by
Joe
120 views
Why are sodium (Na) and potassium (K) in the same group on the periodic table?
• They are both colorless. • They have similar
1 answer
asked by
two
207 views
How many chemical families does the periodic table have?
1 answer
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Naturally occurring nanoelements can be found from group II to _________ of the periodic table.
1 answer
asked by
Rondezy
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fill in the blank: Naturally occurring nanoelements can be found from group II to _________ of the periodic table.
1 answer
asked by
Rondezy
56 views
An element is highly conductive, highly reactive, soft, and lustrous. The element most likely belongs to which group?(1 point)
3 answers
asked anonymously
74 views
Circle the following elements on the table - Tungsten, Iron, Copper, Antimony, Potassium Put a square box around the group that
3 answers
asked anonymously
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What property does neon and argon share in the periodic table
1 answer
asked by
Joe
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Which two groups of elements in the periodic table are the most reactive?
• alkali metals and halogens • halogens and noble
1 answer
asked by
one
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Identify the number of valence electrons for these elements on the table.
Na Mg Al Si P S Cl Ar K Ca
3 answers
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Identify the number of valence electrons for these elements on the table.
H He Li Be B C N O F Ne
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Neon and argon are both in Group 18 of the periodic table. Which property do they most likely share?(1 point) Responses metallic
3 answers
asked by
trippie
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A scientist studies an element that has seven electrons in its outer shell, is fairly toxic, is a gas at room temperature, and
3 answers
asked by
trippie
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Writing question’s for chemistry
Questions 1: Moving from the element with atomic number 10 to atomic number 11 on the periodic
3 answers
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On which atomic property proposed by Henry Moseley is the current periodic table of the elements based? (1 point)
* atomic weight
3 answers
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Where on the periodic table do you find elements that have full valence electron shells?
(1 point) • on the right side of the
3 answers
asked anonymously
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The periodic table groups elements into which of the following three categories?
1 answer
asked anonymously
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For nonmetals, how does chemical reactivity trend in a period?
It increases across (left to right) a period. It decreases across
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For nonmetals, how does chemical reactivity trend in a group?
It increases down a group. It decreases down a group.
3 answers
asked anonymously
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Which two groups of elements in the periodic table are the most reactive?
noble gases and alkali metals alkali metals and
2 answers
asked by
one
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What are the elements in Group A1 on the periodic table?
alkali metals alkali earth metals inner transition metals ** halogens
3 answers
asked by
Selena
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if only an element's atomic number and weight are
1 answer
asked by
Hi
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Are elements with the same number of valence shell electrons located in the same family or period?
What is a FAMILY? PERIOD?
1 answer
asked by
🍋 Lemon 🍋
67 views
why were the paper alexandre-emile beguyer de chancourtois wrote and the diagram he put together never widely accepted?
1 answer
asked by
ian
83 views
For each of the following sets of elements, arrange in order of decreasing atomic radius: Li , O , C , F
Rank from largest to
1 answer
asked by
l
115 views
in a table format, compare the following characteristics or properties of the alkali and alkali-earth metals; reactivity,
1 answer
asked by
asiphe
101 views
Where do you find the atoms with the largest atomic radius on the periodic table? (1 point)
the upper left the lower right the
3 answers
asked by
Blue Gold
357 views
Each colum of the periodic table is
3 answers
asked by
Nathaniel Benson
18 views
Group 17 elements form
3 answers
asked by
Nathaniel Benson
30 views
Group 17 elements form a) -1 b) +1 C) +17 d)-17
3 answers
asked by
Nathaniel Benson
29 views
Which is true of a period in the periodic table?
A. Atomic numbers increase from left to right across each period. B. Elements in
1 answer
asked by
matt
313 views
Why are elements in the Periodic Table placed in the groups that we find them in?
Just a short answer would be good, or even
2 answers
asked by
Chair
179 views
Hi! Good morning! I was suppose to turn in this test yesterday. Can You please help me with these last two essay questions. The
1 answer
asked by
Help Plz
672 views
Which part of elements has the most similar properties?
1 answer
asked by
Broenem
247 views
15. Why would you expect strontium to be chemically more similar to calcium?
They are in the same family/group.*** They are in
3 answers
asked by
YeetusTheFetus
493 views
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Parent Categories (15)
Atomic Structure
Chemical elements
Chemistry
Chemistry Education
Electronegativity
Elements
History of Chemistry
Inorganic Chemistry
Physical Science
Physics
Science
Science (or Chemistry)
Science and Chemistry
Science History
Science/Chemistry