GRADUATE RECORD EXAMINATION (GRE) – CHEMISTRY EXAMINATION 2026 STRUCTURED GRADUATE-LEVEL EXAMINATION DESIGNED TO EVALUATE CONCEPTUAL MASTERY, QUANTITATIVE PROBLEM-SOLVING, REACTION MECHANISMS SPRING SEMESTER EXAMINATION [2025/2026]

GRADUATE RECORD EXAMINATION (GRE) –
CHEMISTRY EXAMINATION 2026
STRUCTURED GRADUATE-LEVEL EXAMINATION DESIGNED TO
EVALUATE CONCEPTUAL MASTERY, QUANTITATIVE PROBLEM-SOLVING,
REACTION MECHANISMS

SPRING SEMESTER EXAMINATION [2025/2026]




Alpha Decay

Loss of 2 protons, neutrons. Spits out alpha particle. Daughter mass number is 4 less, atomic
number is 2 less




Normal Beta Decay

Neutron splits into proton and high velocity electron known as beta particle. Daughter will be
different element but have same mass number as parent




Electron Capture

Proton and electron form neutron. Reverse of Beta decay




Positron Emission
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Proton splits into neutron and positron, a positive electron

, Gamma Decay

Energy is emitted as a Gamma ray photon. Daughter is identical to parent but with less energy




Degenerate quantum states

Quantum states or configurations that have identical energies




Atomic Size Trends

Increases going down, decreases going across to the right




Ionization Energy Trends

Increases as you go up and to the right




Electron Affinity Trends

Increases as you go up and to the right




Electronegativity

Ability to polarize bonding electrons. Generally increases as you go up and to the right on the
periodic table
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