Information and Communication Technology
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Questions and Answers

Modern information and communication technology has made human lives easier and more efficient. (True/False)

True (A)

ATMs, photocopiers, scanners, printers, routers, and Wi-Fi devices have made human lives more inefficient. (True/False)

False (B)

The use of Artificial intelligence (AI), virtual reality, robotics, and cloud computing is decreasing day by day. (True/False)

False (B)

For the accountability of online transactions, the Computer Code of Conduct, cyber law, and other aspects of Internet security should not be followed strictly. (True/False)

<p>False (B)</p> Signup and view all the answers

An atom is composed of three subatomic particles: protons, neutrons, and electrons. (True/False)

<p>True (A)</p> Signup and view all the answers

Neutrons are positively charged sub-atomic particles in the nucleus of an atom. (True/False)

<p>False (B)</p> Signup and view all the answers

The mass of a proton is equal to the mass of a neutron. (True/False)

<p>True (A)</p> Signup and view all the answers

Electrons revolve around the nucleus in their shells in a random path. (True/False)

<p>False (B)</p> Signup and view all the answers

The mass of a proton is equal to the mass of a hydrogen atom. (True/False)

<p>True (A)</p> Signup and view all the answers

The mass of an electron is very close to the mass of a proton and neutron. (True/False)

<p>False (B)</p> Signup and view all the answers

Protons have a positive charge and are found in the nucleus of an atom. True or False?

<p>True (A)</p> Signup and view all the answers

Neutrons have no charge and are located in the shells or orbit of an atom. True or False?

<p>False (B)</p> Signup and view all the answers

The number of electrons in an atom can be determined using Bohr and Bury's 2n^2 Rule. True or False?

<p>True (A)</p> Signup and view all the answers

The innermost shell of an atom is called the K shell, followed by L, M, and O shells. True or False?

<p>False (B)</p> Signup and view all the answers

Sodium (Na) has 11 protons, 12 neutrons, and 11 electrons. True or False?

<p>True (A)</p> Signup and view all the answers

Oxygen (O) has 8 protons, 8 neutrons, and 7 electrons. True or False?

<p>False (B)</p> Signup and view all the answers

Silicon (Si) has 14 protons, 14 neutrons, and 14 electrons. True or False?

<p>False (B)</p> Signup and view all the answers

Phosphorus (P) has 15 protons, 16 neutrons, and 16 electrons. True or False?

<p>False (B)</p> Signup and view all the answers

Chlorine (Cl) has 17 protons, 18 neutrons, and 17 electrons. True or False?

<p>True (A)</p> Signup and view all the answers

Potassium (K) has 19 protons, 20 neutrons, and 20 electrons. True or False?

<p>True (A)</p> Signup and view all the answers

Flashcards

Impact of ICT on Human Life

Modern information and communication technologies have made human lives easier and more efficient, streamlining tasks and processes.

Technologies Enhancing Efficiency

ATMs, photocopiers, scanners, printers, routers, and Wi-Fi devices are all examples of technologies that enhance efficiency and convenience in various aspects of life.

Emerging Technologies

Artificial intelligence (AI), virtual reality, robotics, and cloud computing are rapidly developing fields with increasing applications in various industries and aspects of life.

Online Security and Accountability

The Computer Code of Conduct, cyber law, and internet security measures are crucial for ensuring responsible and secure online activities.

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What is an Atom?

An atom is the smallest unit of an element that retains the chemical properties of that element. It consists of protons, neutrons, and electrons.

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What are Neutrons?

Neutrons are neutral particles found in the nucleus of an atom, alongside protons.

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Mass of Protons and Neutrons

Protons and neutrons have approximately equal masses, both being much heavier than electrons.

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Electron Orbitals

Electrons revolve around the nucleus in specific energy levels called shells, following defined paths that are not random.

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Mass of a Proton vs. Hydrogen Atom

The mass of a proton is approximately equal to the mass of a hydrogen atom, as a hydrogen atom contains one proton and one electron.

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Mass of Electrons

Electrons are much lighter than protons and neutrons, having a mass that is significantly smaller.

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Protons: Charge & Location

Protons are positively charged subatomic particles located in the nucleus of an atom.

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Neutrons: Charge & Location

Neutrons are neutral particles, meaning they have no charge. They are found in the nucleus of an atom, alongside protons.

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Bohr and Bury's Rule

Bohr and Bury's 2n^2 rule helps determine the maximum number of electrons that can occupy a particular shell in an atom.

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Electron Shells

The innermost shell of an atom is called the K shell, followed by L, M, N, and so on. Each shell can hold a maximum number of electrons determined by the 2n^2 rule.

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Sodium Atom Composition

Sodium (Na) has 11 protons, 11 electrons, and 12 neutrons in its nucleus.

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Oxygen Atom Composition

Oxygen (O) has 8 protons, 8 electrons, and 8 neutrons in its atomic nucleus.

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Silicon Atom Composition

Silicon (Si) has 14 protons, 14 electrons, and 14 neutrons in its nucleus.

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Phosphorus Atom Composition

Phosphorus (P) has 15 protons, 15 electrons, and 16 neutrons in its atomic nucleus.

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Chlorine Atom Composition

Chlorine (Cl) has 17 protons, 17 electrons, and 18 neutrons in its nucleus.

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Potassium Atom Composition

Potassium (K) has 19 protons, 19 electrons, and 20 neutrons in its nucleus.

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