An atom is electrically neutral. Give reason.

Important Questions on Atomic Structure and Chemical Bonding

EASY

9th ICSE

IMPORTANT

TOGETHER WITH CHEMISTRY>Chapter 4 - Atomic Structure and Chemical Bonding>Self Evaluation Test>Q 17

Most of the alpha particles passed straight through gold foil in Rutherford experiment. Give reason.

EASY

9th ICSE

IMPORTANT

TOGETHER WITH CHEMISTRY>Chapter 4 - Atomic Structure and Chemical Bonding>Self Evaluation Test>Q 17

Very few alpha particles retraced their path in Rutherford's gold foil experiment. Give reason.

MEDIUM

9th ICSE

IMPORTANT

TOGETHER WITH CHEMISTRY>Chapter 4 - Atomic Structure and Chemical Bonding>Self Evaluation Test>Q 17

Some alpha particles got deviated in Rutherford's gold foil experiment. Give reason.

EASY

9th ICSE

IMPORTANT

TOGETHER WITH CHEMISTRY>Chapter 4 - Atomic Structure and Chemical Bonding>Self Evaluation Test>Q 18

State reason for an element to have atoms with different mass number.