Parts of the Atom
This is the center of the atom.
What is the NUCLEUS?
The energy required to start a chemical reaction.
What is ACTIVATION ENERGY?
The first step of the engineering process is creating a ____________________________.
What is MEASURABLE GOAL or GOAL?
Ions have either gained or lost ___________.
What are ELECTRONS?
This type of bond is when atoms share electrons.
What is COVALENT?
These are found in the nucleus.
What are PROTONS AND NEUTRONS?
Chemical reactions that release heat energy when they occur.
What are exothermic reactions?
The initial model that we make in the engineering process is called a ________________.
What is PROTOTYPE?
Positive ions are called __________.
What are cations?
Covalent bonds are always formed between two ______.
What are NONMETALS?
This subatomic particle (part of the atom) has a positive charge and determines the name of an element.
What are PROTONS?
Chemical reactions that absorb energy in order to take place.
What is an endothermic reaction?
In our engineering project, we tested our cars using the chemical reaction between baking soda and _____________.
What is VINEGAR?
Isotopes of an element have the same number of protons, but a different number of __________.
What are NEUTRONS?
__________ bonds form when an electron is transferred from one atom to another.
What are IONIC?
This subatomic particle has a negative charge and is gained or lost in ions.
What are electrons?
These are the new substances formed after a chemical reaction has taken place.
What are products?
The last step in the engineering process is _________________.
What is COMMUNICATE FINDINGS?
A negative ion is called an _________.
What is an ANION?
Ionic bonds are always between __________.
What are A METAL AND A NONMETAL?
Multiple atoms bonded together are called a _________.
What is MOLECULE/COMPOUND?
This substance speeds up the rate that the reaction takes place.
What is a CATALYST?
Our cars were powered by an endothermic reaction, meaning it ____________ energy from its surroundings.
What are ABSORBS?
A Potassium atom has a +2 charge, so it _________ electrons.
What is LOST?
A chemical _________ is what you call the force of attraction between two atoms. In other words, when one atom is connected to another.
What is BOND?