Atoms, Periodic Table, and Counting Atoms
Quiz by Jennifer Davis
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- Q1
How many carbon atoms are shown in this formula? 4C6H12O6
24
6
24
12
30s - Q2
This is a chemical formula for a sample of matter: 2H2SO4
How many atoms of oxygen are found in one molecule of the sample of matter?
4
12
8
7
30s - Q3
C2H5OH
What is the subscript for oxygen?
2
5
1
0
30s - Q4
What defines H2S?
Colloid
Compound
Element
Mixture
30s - Q5
Which has 2 atoms of carbon, 6 atoms of hydrogen, and 1 atom of oxygen?
2CH5OH
C2(OH)6
2CH6O
C2H5OH
120s - Q6
What determines an element's identity?
Neutrons
Protons
Electrons
Atomic Number
120s - Q7
Which is an element?
O2
H2O
CO2
SO4
120s - Q8
How many elements are in one molecule of C6H12O6
12
3
24
6
120s - Q9
What element reacts similar to sodium (Na) but has a greater atomic mass?
Magnesium (Mg)
Potassium (K)
Hydrogen (H)
Helium (He)
120s - Q10
What property can you use to determine the identity of an unknown element?
number of neutrons
number of valence electrons
the number of protons
the reactivity of an unknown element
120s - Q11
Which atom has the highest mass number?
D
C
B
A
120s - Q12
Which atom has a negative charge?
D
B
C
A
120s - Q13
What is the limitation of this model?
the number of electrons on each energy level
it shows how an atom is structured
it does not tell you the mass of the atom
it tells you the valence electrons
120s - Q14
What is true about electrons?
they are inside the nucleus and have a negative charge
they are outside the nucleus and have a positive charge
they are outside the nucleus and have a negative charge
they are inside the nucleus and have no charge
120s - Q15
What is the atomic mass of carbon if you have 5 neutrons?
12
11
10
13
120s
