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Periodic Table Flashcards | StudBud

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Periodic Table

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Questions 10

Answers

1
What is valency?
Ionic formation from atoms that have a neutral charge
Charged particles
Ionic formation - an atom that has lost or gained electrons
Ionic formation - an atom that has lost or gained protons
2
What does the atomic number tell us about an element?
The number of protons
The number of protons + electrons
The number of neutrons
The number of protons + neutrons
3
What is the relative atomic mass of potassium?
39.0983
20.0983
19
58.0983
4
Which of the following elements have names that do not resemble their symbol?
Nickel
Potassiium
Scandium
Yttrium
5
Where would you find the halogens on the periodic table?
Group 1
Group 7
Group 8
Group 2
6
How many electrons does a potassium atom have?
58.0983
39.0983
19
20.0983
7
What is a cation?
A positively charged ion
A negatively charged ion
An element of the periodic table
8
How did de Chancourtois contribute to the development of the Periodic Table?
Arranged the Periodic Table by atomic number
He graphed the trends in the properties of elements
Noticed similarities between elements that differed by 7
Elements arranged in 3D arrangement called telluric screw
9
Which of the following is NOT a property of the alkali metals?
Soft
Brittle
Low density
Reactive
10
Where do alkali metals appear on the periodic table?
Group 2
Group 8
Group 1
Group 7