Periodic Table and Bonding

Front

What is an alkali metal?

Back

Alkali metals are the elements found in Group 1 of the periodic table, characterized by having one valence electron. They are highly reactive and include lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).

Front

Name the group of metals that includes gold, iron, and copper.

Back

Transition metals. They are found in the d-block of the periodic table and are known for their ability to form various oxidation states and colored compounds.

Front

Which elements have similar chemical properties to Barium (Ba)?

Back

Calcium (Ca) and Radium (Ra) have similar chemical properties to Barium because they are in the same group (Group 2) of the periodic table.

Front

Why does Francium (Fr) have the lowest ionization energy in Group 1?

Back

Francium has the lowest ionization energy because its one valence electron is very far from the nucleus, requiring little energy to remove it.

Front

Which element has a higher electronegativity than arsenic (As)?

Back

Carbon (C) has a higher electronegativity than arsenic (As). Electronegativity increases across a period and decreases down a group.

Front

What is the periodic trend for atomic radius?

Back

Atomic radius increases down a group due to the addition of electron shells and decreases across a period from left to right due to increased nuclear charge.

Front

Define electronegativity.

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. It is a key factor in determining how atoms interact in chemical bonds.

Front

What is the significance of valence electrons?

Back

Valence electrons are the outermost electrons of an atom and are crucial in determining how an atom bonds with others. They play a key role in chemical reactivity.

Front

Explain the concept of ionization energy.

Back

Ionization energy is the energy required to remove an electron from an atom in its gaseous state. It generally increases across a period and decreases down a group.

Front

What are noble gases and where are they located in the periodic table?

Back

Noble gases are a group of inert gases located in Group 18 of the periodic table. They include helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn).