We can only see things if they give off light but be we use other senses to gather information about things we cannot see.
Answer:
"nonmetal, nonmetal"
Explanation:
Oxygen is a non metal and Nitrogen is a non metal. It is 8th element of the periodic table. It is located in period 2 and group 16.
Nitrogen lies at the group 15 of the periodic table. Its atomic no is 7. Its valency is 2.
Hence, the correct option is (c) "nonmetal, nonmetal".
Inner planets are rockier and outer planets are gaseous. Hope this helps! Can I have brainliest please
Answer:
2.24 Liters are in 4.4 grams of CO2 at STP
Answer: Yes! you're all good. Alkali metals in group 1 are the most metallic :)