Option (b)
Zirconium belongs to group IV and 5th period of the periodic table. The electronic configuration is here, Kr belongs to 18th group (noble gas) with atomic number 36 and electrons per shell is 2, 8, 18, 8.
Since, atomic number is equal to number of protons and number of electrons, atomic number of zirconium will be 36+2+2=40.
Thus, atomic number of zirconium is 40.
To find the number of jellybeans we use unit conversion.
What belongs in the green box?
865 grams x 1 bean
Explanation:
To find the number of jellybeans, you need to use unit conversion. The green box should contain the following expression:
865 grams / 0.328 grams per bean
This expression represents the total mass of all jellybeans (865 grams) divided by the mass of one jellybean (0.328 grams per bean), which gives you the number of jellybeans.
b) 1000 g / 1 kg
c) 1000 kg / 1000 g
d) 1 kg / 1000 g
Answer:
option d = 1 kg/ 1000 g
Explanation:
Given data:
Mass of sodium acetate = 340 g
Mass of sodium acetate in Kg = ?
Solution:
Gram and kilogram both are units of mass. Kilogram is larger unit while gram is smaller unit. The one kilogram equals to the 1000g. In order to convert the given value into kilogram the value must be multiply with 1 Kg/ 1000g.
340 g × 1 Kg/ 1000g
0.34 Kg