There are two atoms..............
Answer: 7
Explanation: oxygen has 5 atoms and nitrogen has 2. Put them together and you get 7
Answer:
White being the color and coming in small grains.
Explanation:
Physical properties are something you can clearly see about the object.
1 mole is equal to 1 moles NaOH, or 39.99711 grams.
Hope this helped
Answer:
All the members of a group of elements have the same number of valence electrons and similar chemical properties.
Explanation:
The vertical columns on the periodic table are called groups or families because of their similar chemical behavior.
