Moseley's Law

Q.

How to learn or keep in mind all the 118 elements in MODERN

PERIODIC TABLE with their atomic masses and atomic no.

Thank You

Wasique Memon.

Q.

What are the main features of the modern periodic theory?

Q. What is the atomic mass of the first 30 elements of periodic table

Q.

The atomic number has been chosen as the basis for classifying elements. Why?

Q. The scientist who propounded the modern periodic law is[TEXTBOOK QUESTION- II(6)]

Q.

1.Explain Modern Periodic law and the present form of the periodic table(point wise)

Q. "The 6 properties of the elements are a periodic function of their atomic numbers.” The statement was given by?

1. J.W. Dobereiner

2. N. Bohr

3. D.I. Mendeleef

4. H.G.J. Moseley

Q.

How to remember MODERN PERIODIC table very easily

with their atomic masses and atomic no.

Thank You

MEMON WASIQUE

Q.

The property which reappears at regular intervals in the periodic table is called ________.

1. atomic properties

2. period

3. periodic properties

4. modern properties

Q.

What is the Periodic Table?

Q. A graph is obtained on plotting the square root of the frequencies of the characteristic X-rays of elements against their atomic numbers.

1. parabola
2. hyperbola
3. straight line

Q.

Which of these following will be in increasing order in the modern periodic table?

1. Atomic number

2. All of these

3. Atomic mass

4. No of neutrons

Q. The elements in modern periodic table are arranged in the increasing order of their _______

1. density
2. atomic weight
3. valency
4. atomic number

Q.

what is the name of element 116 ?

Q. how to learn periodic table

Q. The modern periodic table was suggested by ___.

1. Moseley
2. Mendeleev
3. Bohr
4. Einstein

Q. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> How could the Modern periodic table remove various anomalies of Mendeleev’s periodic table?

Q. Do we need to memerize all 118 elements atomic and Atomic mass numbers in modern periodic table

Q. why iodine is not mentioned in newland table as it was discovered in1811?

Q. Which of the following properties shows a clear periodic variation?

1. First ionisation energy
2. All of the above
3. Number of isotopes of the atom
4. Molar mass of the element

Q.

Why Moseley changed the basis of classifying elements from atomic weight to atomic number?

Q. Name one alkali metal of period 5.

Q. According to Moseley's periodic law the physical and chemical properties of elements are the periodic function of their atomic .

1. structures
2. masses
3. numbers

Q.

Which of the following statement is not correct about the periodic classification of elements?

1. The properties of elements are the periodic functions of their atomic numbers

2. Non-metallic elements are lesser in number than metallic elements

3. For transition elements, the sub-shells are filled with electrons monotonically with increase in atomic number

4. The first ionization energies along a period do not vary in a regular manner with increase in atomic number

Q. On what basis is the elements in periodic table classified?

Q. Give reasons why noble gases were discovered very late

Q. state the modern perodic law.nane the scientist who stated the law.

Q. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> How could the Modern periodic table remove various anomalies of Mendeleev’s periodic table?