WorksheetsSOL 6.4 Atoms, Elements, and Compounds Summative Review
Total questions: 29
Worksheet time: 23mins
Which compound is a product of the following chemical reaction?
CaCl2 + 2NaHCO2 → CaCO3+2NaCl + H2O + CO2
CaCl2
CaCO3
All atoms of the same element have the same-
number of neutrons
atomic number
A change in matter that produces a new substance is —
chemical change
physical change
The number of protons in an atom of Neon (Ne)
20
10
21
The chemical equation shows the chemical reactions in plant photosynthesis. How
many different elements are in the equation?
eight
three
two
Each element is different because each element has
a unique (different) number of protons
its own group on the periodic table
The above graphic of hydrogen peroxide correctly matches which list?
Hydrogen- 1, Oxygen- 1
Hydrogen- 2, Oxygen- 2
Hydrogen- 2, Oxygen- 1
Atoms have the same number of ___________and __________.
neutrons and electrons
protons and electrons
protons and neutrons
Which example correctly identifies the number of atoms of each element in the
compound CaCO3?
Calcium-1, Carbon-1, Oxygen-1
Calcium-3, Carbon-3, Oxygen-3
Calcium-1, Carbon-1, Oxygen-3
What is the chemical symbol for the element in the above picture?
19
K
39.098
How many atoms of carbon are in C9H8O4?
4
8
9
Which is the correctly written chemical symbol?
SP
Si
uP
How many different elements make H2SO4?
five
two
three
eight
The periodic table provides information about
chemical symbols that represent _____.
compounds
molecules
elements
How many total atoms are present in one molecule of CaCO3?
five
two
three
The smallest part of an element, that still has the properties of that element, is —
a compound
an atom
a molecule
A ___________________ is formed when 2 or more atoms join together chemically.
nucleus
atom
molecule
An element has 17 protons, 18 neutrons, and 17
electrons. What is the name of this element?
sulfur
berylium
chlorine
Two or more elements chemically combine together to form —
solution
mixture
compound
An element is a substance that is made up of one type of ________.
Compound
Mixture
atom
Which of the following has the correct charges for each subatomic particle?
Proton +, Electron - , Neutron no charge
Proton no charge, Electron - , Neutron +
Proton -, Electron -+, Neutron no charge
What element is most common in the Earth's crust?
Plutonium
Oil
Gold
Oxygen
What element is most common in Earth's oceans?
Helium
Nitrogen
Oxygen
Aragon
What element is most common in Earth's atmosphere?
Nitrogen
Oxygen
Helium
Methane
What element is most common on all living matter on Earth?
Skin
Hydrogen
Oxygen
Chlorine
What are the most common elements found in Earth's atmosphere?
Iron, Scandium, Barium, Cesium, and Sodium
Lithium, Potassium, Cesium, Radium, and Gold
Nitrogen, Oxygen, Aragon, Carbon
Silicon, Sulfur, Neon, and Helium
What are all the major elements found in Earth's ocean?
Bismuth, Indium, Iron, Chlorine, and Calcium
Hydrogen, Oxygen, Chlorine, and Sodium
Tungsten, Dubnium, Mercury, and Lead
Erbium, Fluorine, Carbon, Sodium
What are the major elements found in the Earth's crust?
Oxygen, Silicon, and Aluminum
Boron, Magnesium, and Hydrogen
Oxygen, Sodium, and Silver
Krypton, Sulfur, and Nitrogen
What are the major elements found in all living matter?
Neon, Helium, Hydrogen, and Calcium
Thallium, Lead, Bromine, and Iodine
Xenon, Radon, Tin, and Niobium
Oxygen, Carbon, Hydrogen, and Nitrogen
