Atomic Structure
What are the charges of protons, neutrons, and electrons?
Protons have a positive charge, electrons have a negative charge, and neutrons have no charge.
Where can you find metals on the periodic table?
Metals are located on the left side and in the middle of the periodic table.
What is the equation for speed?
Speed = Distance / Time.
What are contact forces?
Contact forces are forces that occur when two objects are physically touching each other.
Where are protons and neutrons found in an atom?
Protons and neutrons are found in the nucleus of the atom.
What is the difference between groups and periods in the periodic table?
Groups are vertical columns that contain elements with similar properties, while periods are horizontal rows representing elements with increasing atomic numbers.
What is the definition of velocity?
Velocity is the speed of an object in a specific direction.
What are non-contact forces?
Non-contact forces are forces that act at a distance, such as gravitational, magnetic, and electric forces.
How many protons, neutrons, and electrons are in a carbon atom (atomic number 6)?
Carbon has 6 protons, 6 electrons, and typically 6 neutrons.
What are nonmetals, and where are they typically found on the periodic table?
Nonmetals are elements that lack metallic properties, typically found on the right side of the periodic table.
What is acceleration?
Acceleration is the rate at which an object's velocity changes over time.
How does friction affect motion?
Friction opposes the motion of objects, causing them to slow down or stop.
What is one major difference between earlier models of the atom and the modern model?
Earlier models depicted electrons in fixed orbits, while the modern model describes them in electron clouds.
How do you identify the number of valence electrons in an element?
The group number (for main group elements) indicates the number of valence electrons.
What is friction?
Friction is the force that opposes the motion of an object when it comes into contact with another surface.
What factors can affect the amount of friction between two surfaces?
The types of surfaces in contact and the force pressing them together can affect the amount of friction.
What is the main way the periodic table is organized?
The periodic table is organized by increasing atomic number and groups elements with similar properties in columns.
Why are noble gases located in Group 18 of the periodic table?
Noble gases are in Group 18 because they have a full outer electron shell, making them very stable and unreactive.
What is a reference point?
A reference point is a stationary object used to determine the position or motion of another object.
How can understanding forces help us in everyday life?
Understanding forces helps us make safer decisions in activities like driving, sports, and construction.