مراجعة chemistry ثانية ثانوي شهر أكتوبر.. نماذج امتحانات محلولة

ينشر «شبابيك» مراجعة على مقرر شهر أكتوبر في مادة الكيمياء لغات للصف الثاني الثانوي، وضعت طبقا للمواصفات الامتحانية التي حددتها وزارة التربية والتعليم والتعليم الفني.

أسئلة chemistry لغات شهر أكتوبر للصف الثاني الثانوي

Choose the correct answer from a, b, c or d:

1. the isotopes of the same element are similar in the atomic number and different in the mass number, this fact contradicts the postulates of the atomic theory of …………….

a. bohr b. Rutherford c. Dalton d. Thomson

2. all the following are deflected by the effect of the charged plates, except …………..

a. hydrogen atoms b. cathode rays c. alpha particles d. protons

3. which of the following represents Rutherford experiment?

a. when a beam of beta particles falls on a gold sheet, it is absorbed.

b. when a beam of gamma rays fall on a gold sheet, it liberates electrons

c. when a beam of helium atoms falls on a gold sheet, it is deflected.

d. when a beam of helium nuclei falls on a gold sheet, it is deflected.

4. the visible spectrum of hydrogen atom shows ………….

a. the presence of sublevels in each principal level

b. the presence of definite energy levels

c. the possibility of the emission of a quantum from the orbital of 1s

d. the presence of different isotopes of hydrogen atom

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