22 questions
Check off all of the following parts of the atom that are in the atomic NUCLEUS
protons
neutrons
electrons
What part of the atom do you find in the electron cloud?
Protons have a _____________ charge
positive
neutral
negative
Neutrons have a ____________ charge
positive
neutral
negative
Electrons have a ______________ charge
What is an atom?
substance that consists of only one atom
basic unit of matter
2 or more elements chemically combined
What is an element?
Substance that consists of only ONE atom
Basic unit of matter
2 or more elements chemically combined
What is the SYMBOL of the element in the picture?
26
Fe
Iron
56
What is the NAME of the element in the picture?
26
Fe
Iron
56
What is the ATOMIC NUMBER of the element in the picture?
26
Fe
Iron
56
What is the MASS NUMBER of the element in the picture?
26
Fe
Iron
56
How many PROTONS does Fe (Iron) have?
26
30
56
0
How many ELECTRONS does Fe (Iron) have?
26
30
56
0
How many NEUTRONS does Fe (Iron) have?
26
30
56
0
What 6 elements are part of living things?
A, OH, C, O, P, K
C, H, I, K, E, N
C, H, O, N, P, S
What is the chemical formula for the compound, glucose (sugar)?
H20
CO2
NaCl
C6H12O6
True or False? Acids have less H+ in solution,
True
False
True or False? Acids have a sour taste.
True
False
True or False? Bases have less H+, but more OH- in solution
True
False
True or False? Bases are corrosive (react with metal)
True
False
When CO2 increases, what happens to the pH of something?
It becomes more acidic
It becomes more basic
It becomes neutral
When you place shells in vinegar (an acid), what happens?
Bubbles and the shell stays the same
Bubbles and the shell starts to disintegrate
No changes seen