Particulate Nature
What is matter?
Matter is anything that takes up space and has mass.
How many states of matter were discussed this quarter and what are these?
3; Solid, Liquid, and Gas
What do we call the energy that a moving object has?
What does the first atomic theory states?
Matter is made up of tiny particles called atomos
What are the three subatomic particles and what are their differences?
Protons - positive charge
Neutrons - neutral charge
Electrons - negative charge
He was the one who proposed the first atomic model.
John Dalton
The particles of this state of matter are arranged irregularly and they take up the space of its container. What is the state of matter being described by the statement?
Liquid
What do we call the transformation of a material from one state to another?
Phase Change or Change of Phase
The first atomic model is also known as ________.
Solid Sphere Model
What is the formula in getting the total number of neutrons in an element?
Neutrons = Mass number - Number of Protons
Leucippus and Democritus
What is fluidity?
Fluidity is the ability of particles to flow smoothly.
Formation of frost is an example of what phase change?
Deposition
What subatomic particles are found in the nucleus?
Protons and Neutrons
If an element has a mass number of 24, and 12 as its protons. What element is this?
Magnesium
Explain the differences of Macroscopic, Microscopic, and Submicroscopic
Macroscopic - can be seen by the naked eye.
Microscopic - cannot be seen by the naked eye; instruments are used
Submicroscopic - cannot be observed but it can be explained through experimental evidences
Arrange the three states of matter according to INCREASING attractive forces in its particles.
Gas, Liquid, Solid
Explain the difference between Endothermic and Exothermic Reaction. Provide one example for each.
Endothermic - heat is required or absorbed
Melting, Evaporation, Sublimation
Exothermic - heat is released
Freezing, Condensation, Deposition
What are Ions and its types? Explain.
Ions - Charged atom
Cation - positive ion
Anion - negative ion
What is the value of the charge of an element that has 67 as its atomic number, and 70 as its number of electrons?
-3 or 3-
Explain the difference between elements and compounds. Provide one example for each.
Elements - made up of one type of atom.
Hydrogen, Oxygen, and so on.
Compounds - two or more elements.
Salt, Sugar, Carbon Dioxide, and so on.
This theory states that the arrangement, distribution, attractive forces, and movement of particles make the three states of matter distinct from each other.
Kinetic Molecular Energy
Provide all the six phase changes discussed this Third Quarter, and their original and final state.
Melting - solid to liquid
Freezing - liquid to solid
Condensation - gas to liquid
Evaporation - liquid to gas
Sublimation - solid to gas
Deposition - gas to solid
Where are electrons located in the nucleus and who discovered it?
Outside the nucleus; J.J Thomson
If element X has an atomic number of 45 and 43 as its number of electrons, and element Y has 34 as its number of protons, and 39 as its number of electrons. Which element has a higher value of charge?
Element Y