Atomic structure & Periodic Table Review

The energy of an electron can change only in small discrete units called quanta, this statement is

• Always true

• Sometimes true

• Never true

The position and velocity of an electron in an atom can be determined with great certainty, this statement is

• Always true

• Sometimes true

• Never true

Electrons moving from one energy level to another emit light. This statement is

• Always true

• Sometimes true

• Never true

Non metals react by gaining electrons. This statement is

• Always true

• Sometimes true

• Never true

The nucleus of an atom contains protons and neutrons. This statement is

• Always true

• Sometimes true

• Never true

Electrons occupy the 3s sub-level before 3p, this statement is

• Always true

• Sometimes true

• Never true

Ionization energy values are positive, this statement is

• Always true

• Sometimes true

• Never true

Noble gases are have full outer shells and do not form compounds, this statement is

• Always true

• Sometimes true

• Never true

An alloy is a mixture of two or more elements, of which at least one is a metal, this statement is

• Always true

• Sometimes true

• Never true

Atoms acquire the stable configuration of the nearest noble gas by losing electrons, this statement is

• Always true

• Sometimes true

• Never true