Science

Mendeleev arranges elements in his periodic table according to............

• Their atomic number

• Their atomic weight

• Number of electrons

• Number of protons

Mendeleev arranges elements in group according to the similar in properties

• True

• False

What happen when Mendeleev predicted the discovery of new elements

• Left gaps in his periodic table

• Correct the atomic weight of some elements

• A & B

• Arrange elements according to their atomic weight

Who discovere the positive protons in atom

• Mendeleev

• Bohe

• Moseley

• Rutherford

Choose the wrong sentence

• Mendeleev put the first real periodic table

• Rutherford discovered the positive protons

• Mendeleev arranges elements according to their atomic weight

• Rutherford published his periodic table in Chemistry principles book

Mendeleev published his periodic table in.............

• Chemical system

• Science and life

• Principles of chemistry

• Life principles

Your understanding of the scientific material

• 100%

• 90%

• 65%

• 40%