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Ted wants to know the average atomic mass of calcium. He knows that the letters Ca stand for calcium. He found the entry for calcium, Ca, in Period 4 of the periodic table. Which of the following numbers should Ted identify as the average atomic mass
They have similar chemical properties.
Oxygen (O)
55
They have similar chemical properties.
an arrangement of elements organized in groups and families
the number of protons in a carbon atom
40.07
They are in the same group.
Which phrase BEST describes the periodic table?
They have similar chemical properties.
Oxygen (O)
55
They have similar chemical properties.
an arrangement of elements organized in groups and families
the number of protons in a carbon atom
40.07
They are in the same group.
Find chlorine and bromine in this section of the periodic table. What is true about these two elements?
They have similar chemical properties.
Oxygen (O)
55
They have similar chemical properties.
an arrangement of elements organized in groups and families
the number of protons in a carbon atom
40.07
They are in the same group.
What do elements in the same group on the periodic table have in common?
They have similar chemical properties.
Oxygen (O)
55
They have similar chemical properties.
an arrangement of elements organized in groups and families
the number of protons in a carbon atom
40.07
They are in the same group.
Aisha needs to record the atomic number of the element cesium (Cs) in her lab notebook. This information can be found by interpreting the section of the periodic table shown below. Which of the following is the correct atomic number that Aisha shoul
They have similar chemical properties.
Oxygen (O)
55
They have similar chemical properties.
an arrangement of elements organized in groups and families
the number of protons in a carbon atom
40.07
They are in the same group.
What do elements in the same group on the periodic table have in common?
They have similar chemical properties.
Oxygen (O)
55
They have similar chemical properties.
an arrangement of elements organized in groups and families
the number of protons in a carbon atom
40.07
They are in the same group.
Janet is studying the element nitrogen. She wants to find the element whose atomic number is one greater than the atomic number of nitrogen. Which element should Janet identify?
They have similar chemical properties.
Oxygen (O)
55
They have similar chemical properties.
an arrangement of elements organized in groups and families
the number of protons in a carbon atom
40.07
They are in the same group.
Carbon has an atomic number of 6. Which of the following does the atomic number 6 tell you about carbon?
They have similar chemical properties.
Oxygen (O)
55
They have similar chemical properties.
an arrangement of elements organized in groups and families
the number of protons in a carbon atom
40.07
They are in the same group.
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