Tag: science & technology

Questions Related to science & technology

If one neutron is added to a helium nucleus, the result is:
general knowledge science & technology

  1. Lithium

  2. Helium

  3. Hydrogen

  4. Carbon

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Correct Option: B

The chemical properties of matter comes mostly from its
general knowledge science & technology

  1. Neutrons

  2. Valence electrons

  3. Protons

  4. Neucleous

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Correct Option: B

An excited atom decays to its ground state and emits a photon of green light. If instead, the atoms decays to an intermediate state, then the light emitted could be:
general knowledge science & technology

  1. Violet

  2. White

  3. Blue

  4. Red

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Correct Option: D

How many electrons are found in the outermost shell of aluminum (Al, atomic number 13)?
general knowledge science & technology

  1. 2

  2. 3

  3. 5

  4. 8

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Correct Option: B

When radium (atomic number 88) emits an alpha particle, the resulting nucleus has atomic number.
general knowledge science & technology

  1. 92

  2. 90

  3. 88

  4. 86

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Correct Option: D

Which experiences the least electrical force in an electric field?
general knowledge science & technology

  1. Electron

  2. Beta particle

  3. Gamma ray

  4. Alpha particle

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Correct Option: C

How many moles of sugar are required to make 4 L of a saturated solution of sugar having a concentration of 0.6 mole per liter?
general knowledge science & technology

  1. 2.4

  2. 1.2

  3. 0.8

  4. 1.6

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Correct Option: A

Sugar is not infinitely soluble in water because:
general knowledge science & technology

  1. when you mix enough sugar into water the solution eventually solidifies.

  2. of the strong attractions that occur between sugar molecules

  3. of the strong attractions that occur between water molecules

  4. there is only so much space between water molecules for sugar molecules to fit

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Correct Option: D

Covalent and ionic bonds differ in that:
general knowledge science & technology

  1. ionic bonds don't involve the sharing of electrons

  2. covalent bonds are more permanent

  3. covalent bonds are much less common

  4. ionic bonds are electrical by nature

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Correct Option: A

The outer shells of two atoms that are covalently bonded:
general knowledge science & technology

  1. cancel each other

  2. have increasing capacities for electrons

  3. overlap

  4. repel

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Correct Option: C