Sem1 Remedial Test

Front

What two elements are in the same Period?

Back

B - Boron and C - Carbon are in the same Period (Period 2) of the periodic table.

Front

Write the formula for Iron (III) Sulfite.

Back

The formula for Iron (III) Sulfite is Fe2(SO3)3.

Front

Which element is most likely to have similar properties to sodium (Na)?

Back

Fr (Francium) is in the same group as sodium and has similar properties.

Front

What is the ion formed from Sulfur with 6 valence electrons?

Back

The ion formed from Sulfur is S^-2.

Front

What element is derived from the Latin word 'Stannum'?

Back

The element derived from 'Stannum' is Tin.

Front

Define an ionic compound.

Back

An ionic compound is formed when atoms transfer electrons, resulting in the formation of positive and negative ions.

Front

What is the charge of a sodium ion (Na)?

Back

The charge of a sodium ion (Na) is +1.

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 periodic trend for atomic radius across a period?

Back

Atomic radius decreases across a period from left to right due to increased nuclear charge.

Front

What is the formula for the sulfate ion?

Back

The formula for the sulfate ion is SO4^2-.