Why does green light reflection on a leaf produce less oxygen than blue light
1 answer:
You might be interested in
Answer:
Argon's atoms have 18 protons, 22 neutrons in its nucleus, orbited by 18 electrons- its atomic mass= P 18 +N 22.
Explanation:
Atoms are the most basic unit of matter that makes up elements. Atoms are composed of electrons orbiting neutrons and protons surrounding a nucleus.
The atomic number is defined as the number of protons in an atom, while the atomic mass is the number of protons and neutrons.
The element Argon, Ar is a noble gas, that exists in a gaseous, inert, state at temperature. Its atoms have 18 protons, 22 neutrons in its nucleus, orbited by 18 electrons- its atomic mass= P 18 +N 22.
There are 8 valence electrons in its outer shell, thus:
- Ar is not very reactive, as it does not require electron sharing in atomic bonding.
- It shows low conductivity, as there are no free electrons
Answer:
15 g
Explanation:
The density of an object can be found using the following formula:
We want to find the mass, so we must rearrange the formula for . Multiply both sides of the formula by
.
The mass can be found by multiplying the density and volume.
The density of the object is 1.5 g/mL and the volume is 10 mL.
Substitute the values into the formula.
Multiply. When multiplying, the milliliters, or mL will cancel out.
The mass of the object is 15 grams.