Periodic Table of Elements - Achievement Test

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Questions and Answers

What is the primary purpose of the periodic table?

To show the arrangement of electrons in an atom

To list all known compounds

To organize elements based on their atomic number and properties (correct)

To explain chemical reactions

Which of the following determines an element's chemical behavior?

Neutron number

Proton count

Atomic mass

Electron arrangement (correct)

Elements in the same group (column) of the periodic table have similar chemical properties because they:

Have the same atomic number

Have the same number of valence electrons (correct)

Have the same number of neutrons

Have the same number of protons

Which group contains the most reactive metals?

Group 1 (Alkali metals) Signup and view all the answers

Which element is most likely to form a positive ion?

Sodium Signup and view all the answers

Which group is known for its inert and stable elements?

Group 18 Signup and view all the answers

Chlorine (Cl) belongs to Group 17. What type of ion does it typically form?

-1 Signup and view all the answers

What is the most likely chemical behavior of a noble gas like neon?

It rarely reacts with other elements Signup and view all the answers

Elements in the same period (row) of the periodic table:

Have the same number of electron shells Signup and view all the answers

Which of the following is a property of alkali metals?

High reactivity with water Signup and view all the answers

Which element is a nonmetal and a halogen?

Bromine Signup and view all the answers

An element with an atomic number of 12 belongs to which group?

Alkaline earth metals Signup and view all the answers

Which element is more reactive, potassium (K) or lithium (Li), and why?

Potassium, because its valence electron is farther from the nucleus Signup and view all the answers

Which element is more reactive, fluorine (F) or chlorine (Cl), and why?

Fluorine, because it has a smaller atomic radius Signup and view all the answers

What happens to the reactivity of alkali metals as you go down Group 1?

Increases Signup and view all the answers

How does the reactivity of halogens change as you go down Group 17?

Decreases Signup and view all the answers

Which of the following elements is least reactive?

Helium Signup and view all the answers

Which of the following describes a metalloid?

Exhibits properties of both metals and nonmetals Signup and view all the answers

What trend is observed in atomic radius as you move across a period from left to right?

It decreases Signup and view all the answers

What trend is observed in ionization energy as you move across a period from left to right?

It increases Signup and view all the answers

What type of bond forms between elements in Group 1 and Group 17?

Ionic bond Signup and view all the answers

Which of the following elements is most likely to conduct electricity?

Aluminum Signup and view all the answers

If an element has 7 valence electrons, which group does it belong to?

Group 17 Signup and view all the answers

Which of the following is a transition metal?

Iron Signup and view all the answers

Which periodic trend explains why fluorine is highly reactive?

High electronegativity Signup and view all the answers

Study Notes

Periodic Table of Elements - Achievement Test

The primary purpose of the periodic table is to organize elements based on their atomic number and properties.
Elements in the same group (column) of the periodic table share similar chemical properties, primarily due to having the same number of valence electrons.
An element's chemical behavior is determined by its electron arrangement.
The most reactive metals are found in Group 1 (Alkali metals).
Elements in Group 18 (Noble gases) are known for their inert and stable behavior, rarely reacting with other elements.
Chlorine (Group 17) typically forms a -1 ion.
Noble gases like neon typically do not react with other elements.
Elements in the same period (row) have the same number of electron shells.
Alkali metals (Group 1) are highly reactive with water.
Bromine is a nonmetal and halogen.
Elements with atomic number 12 belong to Group 2 (Alkaline earth metals).
Potassium is more reactive than lithium due to its valence electron being farther from the nucleus, allowing for easier removal.
Fluorine is more reactive than chlorine due to its smaller atomic radius, making it easier to gain an electron.
Reactivity of alkali metals increases as you go down Group 1.
Reactivity of halogens decreases as you go down Group 17.
Helium is the least reactive element among those listed.
Metalloids exhibit properties of both metals and nonmetals.
Atomic radius decreases as you move across a period from left to right.
Ionization energy increases as you move across a period from left to right.
Ionic bonds typically form between elements in Group 1 and 17.
Aluminum is a good conductor of electricity.
Elements with 7 valence electrons belong to Group 17.
Iron is a transition metal.
Fluorine is highly reactive due to its high electronegativity and low ionization energy.

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Description

Test your knowledge of the periodic table and the properties of different elements. This quiz covers various groups, properties, and reactivity trends of elements, helping you to understand their behavior and arrangements. Perfect for students learning chemistry concepts related to the periodic table.