High School

4.30 Write the names and symbols for the elements with the following atomic numbers:

a. 1
b. 11
c. 19
d. 82
e. 35
f. 47
g. 15
h. 2

Answer :

In this question, you are asked to identify the elements with specific atomic numbers. The atomic number of an element represents the number of protons in the nucleus of an atom of that element.

Here is the list of elements corresponding to the given atomic numbers:

  1. Atomic Number 1: The element with atomic number 1 is Hydrogen. Its chemical symbol is H.

  2. Atomic Number 11: The element with atomic number 11 is Sodium. Its chemical symbol is Na.

  3. Atomic Number 19: The element with atomic number 19 is Potassium. Its chemical symbol is K.

  4. Atomic Number 82: The element with atomic number 82 is Lead. Its chemical symbol is Pb.

  5. Atomic Number 35: The element with atomic number 35 is Bromine. Its chemical symbol is Br.

  6. Atomic Number 47: The element with atomic number 47 is Silver. Its chemical symbol is Ag.

  7. Atomic Number 15: The element with atomic number 15 is Phosphorus. Its chemical symbol is P.

  8. Atomic Number 2: The element with atomic number 2 is Helium. Its chemical symbol is He.

These elements are fundamental building blocks in chemistry, and knowing their symbols and atomic numbers is crucial for understanding chemical reactions and the periodic table.

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