According to periodic table which elements has seven valence electrons

What happens to atomic radius size of a cation and why?

Consider the reaction between no and cl2 to form nocl: 2no (g) + cl2 (g) ⇌2nocl (g) a reaction mixture at a certain temperature initially contains only [no] = 0.65 m and [cl2] = 0.53.

Genes are located in which part of a cell?

Total number of electrons present in 1.8 grams of water is (a) 6.023x10^22 (b) 6.023x10^24 (c) 18x10^23 (d) 6.023x10^23

The only non-metal that is liquid at room temperature is what

Compare and contrast the outer core and the inner core.

What colors make the color turquoise?

12.23 g of ammonia (NH3) are dissolved in enough water to make 560.0 mL of solution. How many moles of NH3 are added to the water?

According to the ph scale, what is the approximate ph of acid rain? a. 4.0 b. 4.5 c. 5.0 d. 5.5

You find a little bit (0.150g) of a chemical marked Tri-Nitro-Toluene, and upon combusting it in oxygen, collect 0.204 g of CO2 and 0.030 g H2O (we'll assume that these are the products, along with nitrogen).