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Match it! Select the correct answer from the pull down...Good luck!
Which of these elements is found in period 2 group 3?
dubnium
Tc
potassium and lithium
arsenic
radium
boron
actinium
calcium and selenium
Which of these elements is found in period 4 group 5?
dubnium
Tc
potassium and lithium
arsenic
radium
boron
actinium
calcium and selenium
What is the correct symbol for technetium?
dubnium
Tc
potassium and lithium
arsenic
radium
boron
actinium
calcium and selenium
Which 2 elements are found in the same group?
dubnium
Tc
potassium and lithium
arsenic
radium
boron
actinium
calcium and selenium
Which element has the atomic number 89?
dubnium
Tc
potassium and lithium
arsenic
radium
boron
actinium
calcium and selenium
Which of these elements are in the same period?
dubnium
Tc
potassium and lithium
arsenic
radium
boron
actinium
calcium and selenium
Which element is a metal?
dubnium
Tc
potassium and lithium
arsenic
radium
boron
actinium
calcium and selenium
Which element has the symbol Db?
dubnium
Tc
potassium and lithium
arsenic
radium
boron
actinium
calcium and selenium
Check it!