3 coefficient
What is the collective name for the elements in Group 2 of the periodic table?
Alkaline Earth Metals
Which metal is described as "light and very strong," making it perfect for aerospace technology?
Beryllium (Be)
Based on the slides, which element is "less chemically active" compared to others in the group?
Beryllium (Be).
Which two famous scientists discovered Radium?
Marie and Pierre Curie
Why is Barium used in medical X-ray imaging?
Because it absorbs X-rays well.
What are the specific flame colors produced by Magnesium and Strontium respectively?
Magnesium = Bright White; Strontium = Bright Red
True or False: All Group 2 elements are silvery metals that conduct heat and electricity well
True
Which element is a key component of chlorophyll in plants?
Magnesium (Mg).
Look at the electron configurations in the images. Which element has the configuration 5s^2?
Strontium (Sr)
How many electrons do these elements have in their outer shell?
2 electrons
Apart from bones and teeth, name one construction material mentioned in the slides that contains Calcium compounds.
Cement (or Glass)
What is the precise atomic weight (mass) of Radium as shown on its periodic tile?
226,025