Unit 2_Multiple Choice Questions-1

ATOM AND THE PERIODIC TABLE

Multiple Choice Questions-1

Soruyu yanıtlamak için seçeneklere basınız.

1) What is the name given to the region where probability of finding an electron is the highest?

A)

Shell

B)

Layer

C)

Orbital

D)

Nucleus

Soruyu yanıtlamak için seçeneklere basınız.

2) According to Thomson’s Atomic Theory an atom is a sphere and there are particles distributed homogeneously in it. What did Thomson state about the charge of the sphere and the charge of the particles distributed in it?

Charge of sphere Charges of particles in it

A)

Positive Negative

B)

Positive Positive

C)

Negative Positive

D)

Negative Negative

Soruyu yanıtlamak için seçeneklere basınız.

3) Which one of the following is true about the place of positively and negatively charged particles in the atom?

A)

Both are located in the nucleus.

B)

Both are located outside the nucleus.

C)

Positively charged particles are in the nucleus, negatively charged particles are outside the nucleus.

D)

Negatively charged particles are in the nucleus, positively charged particles are outside the nucleus.

Soruyu yanıtlamak için seçeneklere basınız.

4) Which concepts are explained in I and II? I. An electron gains energy when moving to higher energy levels. II. An electron loses energy when moving to lower energy levels.

I II

A)

Emission Absorption

B)

Emission Emission

C)

Absorption Absroption

D)

Absorption Emission

Soruyu yanıtlamak için seçeneklere basınız.

5) I. An electron in the n=1 energy level of Hydrogen II. An electron in the n=2 energy level of Hydrogen Which states are explained above?

I II

A)

Ground state Ground state

B)

Ground state Excited state

C)

Excited state Ground state

D)

Excited state Excited state

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