MP2: Six weeks test regular CHEM 2024-2025

Front

What is the electron configuration for Carbon?

Back

1s² 2s² 2p²

Front

What does the Periodic Law state about elements in the same group?

Back

Elements in the same group will have similar chemical and physical characteristics.

Front

What type of bond is formed when valence electrons are shared between atoms?

Back

Covalent bond.

Front

List the elements in order of increasing electronegativity: Na, Mg, P, Cl.

Back

Na → Mg → P → Cl.

Front

In the compound sodium chloride (NaCl), what happens to chlorine?

Back

Chlorine gains one electron.

Front

What is the definition of electronegativity?

Back

Electronegativity is the tendency of an atom to attract electrons in a chemical bond.

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons determine how an atom can bond with other atoms.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

Front

What is the general trend of electronegativity across a period in the periodic table?

Back

Electronegativity increases from left to right across a period.

Front

What is the general trend of electronegativity down a group in the periodic table?

Back

Electronegativity decreases down a group.