12 Questions
What is the origin of the word 'atom'?
It comes from the Greek word 'atomos' meaning indivisible
Which subatomic particles carry a positive charge?
Protons
What is the name given to the central region of an atom that contains protons and neutrons?
Nucleus
In a stable atom, what is the relationship between the number of protons and electrons?
The number of protons and electrons is equal
What is the collective name given to protons and neutrons?
Nucleons
According to the passage, which subatomic particles contribute to the mass of an atom?
Protons and neutrons
What was the primary evidence that led Rutherford to propose the nuclear model of the atom?
All of the above observations contributed to Rutherford's nuclear model.
In Rutherford's nuclear model, what is the location of the positive charge and the majority of the mass of an atom?
Concentrated in a dense, positively charged nucleus at the center.
Which model of the atom did Rutherford's nuclear model replace?
Thomson's plum pudding model.
Why might the 'raisin bread model' or 'watermelon fruit model' be better analogies than the 'plum pudding model' for students in the Philippines?
Raisins and watermelons are more commonly known in the Philippines.
In the nuclear model of the atom, what is the region where the electrons are located?
Mostly empty space surrounding the nucleus.
What is the primary difference between a neutral atom and an ion?
A neutral atom has an equal number of protons and electrons, while an ion has an imbalance.
Test your knowledge on atoms, the smallest unit of matter, and the properties of subatomic particles. Explore the composition of atoms and their significance in understanding the world around us.
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