WorksheetsPeriodic Table & Atoms in Chemical Formulas- Think Up
Total questions: 20
Worksheet time: 10mins
Which set of elements represents a period within the periodic table?
H, He, Ar, Xe, and Rn
K, V, Fe, Ga, and Kr
N, P, As, Sb, and Bi
La, Pd, Sm, Tb, and Yb
Based on information provided in the table below, the melting point of barium could be estimated as —
1283.0°C
725.0°C
400.0°C
1698.0°C
In the periodic table below, which elements are predominantly gases with low densities?
A
B
C
D
All of the following properties describe the element calcium, EXCEPT
reactive
shiny and silvery-white in color
found in nature
soft enough to be cut with a knife
Elements J and Z have the same number of energy levels, as shown in the diagrams below. Which statement best describes the positions of Elements J and Z in relation to each other?
A. Elements J and Z are part of the same group in different periods.
B. Elements J and Z are part of different groups in the same period.
C. Elements J and Z are part of groups next to each other in the same period.
D. Elements J and Z are part of different groups in different periods.
Which characteristic belongs in the middle of the Venn diagram? (Group, Period)
Place elements from left to right based on atomic number
Include elements that have similar chemical properties
Contain elements that have the same number of valence electrons
Organize elements based on properties
Which periodic trend decreases left to right across the periodic table?
Metallic properties
Atomic size
Chemical reactivity
Both Metallic properties and Chemical reactivity
Halogens are classified together as a group because all the elements—
are conductors of electricity
have the same atomic mass
have similar chemical and physical properties
are malleable and ductile
Which sets of elements have similar chemical and physical properties? Select TWO correct answers.
Set 1
Set 2
Set 3
Set 4
Set 5
Which of the following best describes the location of an element in the same period as the element tin?
Group 14(4A), Period 4
Group 16(6A), Period 5
Group 14(4A), Period 6
Group 13(3A), Period 6
Which set of elements has properties similar to phosphorus?
Aluminum, silicon, sulfur, and chlorine
Carbon, selenium, iodine, and radon
Oxygen, germanium, indium, and mercury
Nitrogen, arsenic, antimony, and bismuth
How many nitrogen atoms are in the chemical formula below? 5C6H10N4O2 Number of nitrogen atoms:
10
15
20
8
Which correctly identifies the chemical formula of glucose?
C12H24O6
C6H12O6
C6H6O6
C5H10O6
Subscripts indicate how many atoms of each kind exist in a chemical formula. Students create "color atoms" to explore the concept of chemical formulas before using element symbols. Which chemical formula is represented by the model?
BW3
B2W3
2BW3
2B3W
A student completes the following graphic in a lab journal. Which statement correctly identifies location C in the graphic?
Allows portions of a chemical formula to be repeated
Identifies the element in a chemical formula
Indicates that the subscripts must be multiplied
Determines the number of atoms in the chemical formula
The chemical formula for sulfuric acid is shown below. H2SO4 Which of the following correctly represents how many atoms of each element are present in the compound?
H-8 atoms, S-1 atom, O-4 atoms
H-6 atoms, S-4 atoms, O-4 atoms
H-2 atoms, S-1 atom, O-4 atoms
H-2 atoms, S-2 atoms, O-4 atoms
According to the table, which chemical formula correctly represents the atoms in zinc phosphate?
Zn3(PO4)2
Zn3(PO4)2
Zn3P2O3
Zn3(PO4)4
How many different elements are part of one molecule of C10H7Cl2O2P?
19
20
21
None of the above
What information best completes the diagram? Subscript: Identifies the number of atoms, Small number Coefficient: Identifies the number of molecules, Located in front of the chemical formula, Large number
Number of compounds
Located in front of the chemical symbols
Number of molecules
Located behind the chemical symbols
A student wants to create a model of NaHCO3 (baking soda). How many LEGO blocks of each color are needed for the model?
Yellow: 1 Black: 1 Green: 0 Blue: 0 White: 1 Red: 3
Yellow: 2 Black: 1 Green: 1 Blue: 0 White: 1 Red: 2
Yellow: 1 Black: 2 Green: 0 Blue: 1 White: 1 Red: 2
Yellow: 0 Black: 1 Green: 1 Blue: 1 White: 2 Red: 3
