🧪 All About Atoms
⚛️ Ionic vs. Covalent & Periodic Table
⚗️ Reactions & Balancing Equations
💻 Block Code & Word Code (Python)
📚Vocab & Miscellaneous
100
What are the three subatomic particles in an atom?
Answer: Protons, neutrons, and electrons.
100
Which type of bond forms between a metal and a nonmetal?
Answer: Ionic.
100
Is burning wood a physical or chemical change?
Answer: Chemical.
100
In programming, why does sequence matter?
Answer: Instructions are executed in order, so changing the order changes the result.
100
What is an element?
Answer: A pure substance made of only one type of atom.
200
Which particle has a positive charge?
Answer: Proton.
200
Which type of bond shares electrons?
Answer: Covalent.
200
Is melting ice a physical or chemical change?
Answer: Physical.
200
Which line has correct Python syntax?
A. hero moveRight()
B. hero.moveRight()
C. hero.moveRight
Answer: B.
200
What are valence electrons?
Answer: Electrons in the outermost shell of an atom.
300
An atom has 11 protons, 12 neutrons, and 11 electrons. What is its atomic number?
Answer: 11.
300
Would sodium (Na) and chlorine (Cl) form an ionic or covalent bond? Why?
Answer: Ionic because Na is a metal and Cl is a nonmetal.
300
According to the Law of Conservation of Mass, what happens to the total mass during a chemical reaction?
Answer:
The total mass stays the same. Mass cannot be created or destroyed.
300
Write the code to move the hero right 3 spaces, up 2 spaces, then left 1 space.
Answer:
hero.moveRight(3)
hero.moveUp(2)
hero.moveLeft(1)
300
When discussing coding, what role do functions play on working on robots? Define function
Function: A block of code that is given a name so that it can be reused.
400
If an atom has 17 protons and 18 electrons, is it neutral? Explain.
Answer: No. It has one extra electron, making it a negative ion.
400
How many valence electrons does oxygen have?
Answer: 6.
400
Balance this equation and show your work:
N₂ + H₂ → NH₃
Answer: N₂ + 3H₂ → 2NH₃
400
Find and fix the mistakes in this code. How many steps is the hero from where it began?
hero.moveRight(3) hero moveUp(2) hero.moveleft(1)
Answer:
hero.moveRight(3) hero.moveUp(2) hero.moveLeft(1)
400
When programming a robot to lift its arm, how can you tell the motor when to stop?
A. By setting the number of rotations
B. By setting the amount of time in seconds
C. By using either the number of rotations or the time in seconds
D. None of these
Answer: C
500
Using only the periodic table, explain how you could determine the number of electron shells and valence electrons for phosphorus.
Answer: Period 3 = 3 shells; Group 15 (5A) = 5 valence electrons.
500
Draw a Bohr model on the whiteboard of the element below:
500
A student balanced the equation below like this:
H₂ + O₂ → H₂O
The student says, "It's okay because there are hydrogen and oxygen on both sides."
Are they correct? If not, explain why.
Answer:
No. The equation is not balanced because there are 2 oxygen atoms on the left but only 1 oxygen atom on the right. It should be:
2H₂ + O₂ → 2H₂O
500
What shape will this line of code create? You can use the whitboards to draw out the code.
While(true)
object.moveRight ();
object.moveUp ( );
object.moveLeft ( );
object.moveDown ( );
a square
500
Lightning Round! Define ALL FIVE: Atom, Element, Compound, Algorithm, Syntax.
Answer:
• Atom – smallest unit of matter
• Element – one type of atom
• Compound – two or more bonded elements
• Algorithm – step-by-step instructions
• Syntax – the rules/grammar of programming