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WorksheetsElements and Atoms
Total questions: 25
Worksheet time: 25mins
What is the name for the center of the atom where the protons and neutrons are located?
Atomic weight
Atomic number
Nucleus
Electron cloud
The element lithium has atomic number of 3. Its atomic mass is 7. How many protons does a lithium atom have? [Type your answer]
(a)
The element lithium has atomic number of 3. Its atomic mass is 7. How many neutrons does a lithium atom have? [Type your answer]
(a)
The atomic number of magnesium is 12. The atomic mass is 24. How many protons does a magnesium atom have? [Type your answer]
(a)
The atomic number of magnesium is 12. The atomic mass is 24. How many neutrons does a magnesium atom have? [Type your answer]
(a)
Use your periodic table to answer the following question.
Which of the following atoms has 6 protons?
Carbon (C)
Silicon (Si)
Sulfur (S)
Argon (Ar)
Use your periodic table to answer the following question.
Which of the following atoms has 10 protons?
Fluorine (F)
Neon (Ne)
Sodium (Na)
Magnesium (Mg)
Which element has 8 protons? [Write the name or the letter of the element.]
(a)
Which element has 7 neutrons? [Write the name or the letter of the element.]
(a)
Which element has only 1 proton?
Hydrogen
Helium
Carbon
Oxygen
The diagram shows one atom. Which type of atom is it?
How many neutrons are in a phosphorus atom?
15
31
16
46
How many protons are in a copper atom?
29
64
35
93
What is the atomic number of gold?
79
197
118
276
What is the atomic weight of gold?
79
197
118
276
How many protons are in a gold atom?
79
197
118
276
How many neutrons are in a gold atom?
79
197
118
276
The atomic weight of an atom is
the same as the number of protons.
all the electrons added together.
balanced out by electrons and protons.
the number of protons added to the number of neutrons.
The atomic number of an element represents
the number of protons
the number of neutrons
how heavy the atom is
the electric charge of the atom
