KBC 14: Which of the following are the fundamental building blocks of matter?
KBC 14: Which of the following are the fundamental building blocks of matter?
Options:
A) Atom
B) Photon
C) Alpha particles
D) Gamma particles
Answer: Atom
Atoms are called the building blocks of matter. An atom is composed of negative, positive and neutral subatomic particles. The particles that are present inside the nucleus are protons and neutrons while the negative particles (electrons) revolve around the nucleus in defined orbits.
The total mass of an atom, including the protons, neutrons and electrons, is the atomic mass or atomic weight. The atomic mass or weight is measured in atomic mass units.
An ion is an atom with a different number of electrons than protons and is electrically charged. An ion with extra electrons has a negative charge and is called an anion and an ion deficient in electrons has a positive charge and is called a cation.
According to CERN, atoms were created 13.7 billion years ago in the first few minutes after the Big Bang.
Matter on the other hand is defined as anything which has mass and takes up space is called matter. The matter can be classified as solid, liquid and gas. In solids, particles are held together by strong attractions due to which solids are rigid and hard. In liquid, the particles are loosely placed, than in solids. The particles can move freely in liquid. In gas there are minimal attraction or forces between the particles. Water exist in all the three states of matter, ice, liquid water, and gaseous steam.
Other questions in KBC 14 quiz:
KBC 14: Which of the following Indian actress has won the Miss World Pageant?
KBC 14: Which of the following changes happens to ice when it melts to form water?
KBC 14: Who was the first Indian ever to serve as a jury member at the Cannes Film Festival?
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