Elements
What element has the MOST protons?
Oganesson
What are the three subatomic particles and what are their electrical charges?
Protons = Positive
Electrons = Negative
Neutrons = No charge
1. 2 or more atoms
2. Atoms are chemically combined
3. Atoms can be the same or different element
What is the density formula?
D=m/v
What are the two types of cells? (Do not say plant and animal cells)
Prokaryote
Eukaryote
What element has the highest known atomic mass?
Livermorium
Where are protons, neutrons, and electrons located in an atom?
Neutron = Nucleus
Electron = Electron Shell
What are the three characteristics of a compound?
1. 2 or more atoms
2. Atoms are chemically combined
3. Atoms have to be different (2 or more elements)
Give an example of a physical change
many answers
What does an animal cells have that a plant cell does not?
Lysosome
Find Antimony (atomic number: 51), how many neutrons are in one atom?
71
Atoms are the ________________________________________________________________.
Basic building blocks of matter
How is a mixture different from a compound and molecule?
Mixtures are not chemically combined
Give an example of a chemical change
many answers
what 4 things do all cells have in common?
Cell membrane, cytoplasm, DNA, Organelles
What word does Iodine, Colbalt, Nickel, and Carbon make using their chemical symbols?
ICoNiC
How many atoms make up an average human?
Trillions
What is a molecule of water made of?
2 hydrogen atoms and 1 oxygen atom
What is the density of an object that has a mass of 25g and a volume of 5mL
5g/mL
What does a prokaryote have to help it move?
140
Protons and Neutrons
On the board, what can this be considered? (Hint: you need all 3 answers
Molecule
Element
Pure Subtance
29g/mL
Where is the DNA located in a Prokaryote and Eukaryote?
Prokaryote = cytoplasm
Eukaryote = nucleus