MATTER AND ATOMIC STRUCTURE

Which of the following is not a particle

• compound

• atom

• molecule

• ion

Which of the following is true about molecules? You may choose more than 1 answer

• made of atoms

• Chemically bonded

• Atoms must be same type only

• atoms must be different type only

Which of the following is true about elements?

• Elements must only be made of a type of atoms

• All elements must be in atomic form

• All elements must be in molecule form

• Elements are usually uncharged

Which of the following is true about compounds? You may choose more than one answer

• Made of molecules

• Made of ions

• Made of different types of ions with same charges

• Made of same types of ions

Which of the following substance exist as a molecular element?

• Helium

• Water

• Zinc

• Chlorine

Which of the following exist as atom?

• Bromine

• Oxygen

• Nitrogen

• Argon

Which of the following statement is true? You may choose more than one answer.

• When temperature increases, particles move slower because they expand

• When temperature is constant, heavier particles will move slower

• When temperature decreases, kinetic energy of particles also decreases

• When temperature is constant, all particles stop moving

Which of the following are the correct statements in explaining diffusion of bromine gas using Kinetic Theory of Matter? You may choose more than one answer.

• Bromine gas will diffuse from low concentration to high concentration

• Bromine molecules will diffuse into spaces between air particles

• Bromine molecules are small and discrete

• Bromine molecules are constantly vibrating at their fixed position

Which of the following is untrue during melting process?

• Heat energy is absorbed

• Particles can move freely

• Particles will arrange less orderly

• Kinetic energy of particles is higher

Which of the following explain the freezing point of naphthalene? You may choose more than one answer.

• Temperature is decreasing

• Heat energy released from forming forces of attraction is the same as heat energy lost to surrounding

• There will be a mix of solid and liquid

• Kinetic energy of particles decreases