7 Questions
Which of the following elements make up approximately 96% of living matter?
Carbon (C), oxygen (O), hydrogen (H), and nitrogen (N)
What is the atomic number of an element?
The number of protons of that element
Which subatomic particles are electrically charged?
Protons and electrons
Which of the following statements is true about isotopes?
Isotopes have different number of protons but the same number of neutrons.
What is the main factor that determines the chemical behavior of an atom?
The number of electrons in the atom's electron shells.
Which type of chemical bond is the strongest in nature?
Covalent bond
What is the role of hydrogen bonds in living cells?
All of the above.
Test your knowledge of basic chemistry with this quiz on elements and compounds. Learn about the essential elements of life and how matter is made up of these building blocks. Challenge yourself to identify key elements and their significance in living organisms.
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