Atomic number : ______ :: Mass number : Number of protons and neutrons. - Science

Atomic number : ______ :: Mass number : Number of protons and neutrons.

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Atomic number: Number of protons:: Mass number: Number of protons and neutrons.

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Chapter 4: Atomic Structure - Evaluation [Page 51]

Chapter 4 Atomic Structure
Evaluation | Q V. 2. | Page 51

What are the atomic numbers of elements whose outermost electrons is represented by 3p⁵?

Match the atomic numbers 4,8,10,15 and 19 with the following:

Element with four shells

Name or state the following:

Elements having same mass number but different atomic number

Draw the structure of the following atoms showing the nucleus containing – protons, neutrons and the orbits with the respective electron:

Lithium [At. no. = 3, Mass no. = 7]

Draw the structure of the following atoms showing the nucleus containing – protons, neutrons and the orbits with the respective electron:

Carbon [At. no. = 6, Mass no. = 12]

Draw the structure of the following atoms showing the nucleus containing – protons, neutrons and the orbits with the respective electron:

Isotopes of hydrogen [1₁H, 2₁H, 3₁H]

If element M has mass number 24 and atomic number 12, how many neutrons does its atom contain?

Compare the charge and mass of protons and electrons.

If M is the atomic mass and A is the mass number, then packing fraction is given by ______.

An element has 2 electrons in its N shell.

What is its atomic number?