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Be and Ca
All first group elements like Li, Na, K, etc.
Be and Ca Same group Same chemical property Two electron in outmost shell.
Isotopes problem is solved. Noble gases which are discovered later placed separately. Atomic numbers are now increasing in regular way.
Metalloids separates metals and non-metals.
Name two elements that have two electrons in their outermost shells.
Be and Ca
Be and Ca
See lessName three elements that have a single electron in their outermost shells.
All first group elements like Li, Na, K, etc.
All first group elements like Li, Na, K, etc.
See lessName two elements you would expect to show chemical reactions similar to magnesium. What is the basis for your choice?
Be and Ca Same group Same chemical property Two electron in outmost shell.
Be and Ca
- Same group
- Same chemical property
- Two electron in outmost shell.
See lessHow could the Modern Periodic Table remove various anomalies of Mendeléev’s Periodic Table?
Isotopes problem is solved. Noble gases which are discovered later placed separately. Atomic numbers are now increasing in regular way.
- Isotopes problem is solved.
- Noble gases which are discovered later placed separately.
- Atomic numbers are now increasing in regular way.
See lessName the elements that separated the metals and non-metals in periodic table.
Metalloids separates metals and non-metals.
Metalloids separates metals and non-metals.
See less