Answer:
Explanation:
Ions are substances the have lost or gained a certain amount of electrons. This makes them either positively or negatively charged.
They are charged particles.
- Every atom is made up of protons, neutrons and electrons.
- They are the three fundamental particles in any atom
- The protons and neutrons are located in the central part called the nucleus of an atom. It is a simple tiny space.
- Protons are positively charged particles. Neutrons do not carry any charges. Therefore, the nucleus is negatively charged.
- Electrons are negatively charged particles. They occupy the bulk volume of an atom.
Every atom is neutral and the number of protons and electrons are the same. The equal number of protons and electrons balances to attain neutrality of an atom.
Electrons are very easy to lose since they occupy the outermost shell.
- When an atom loses an electron, the number of protons is more than electrons. Therefore, it becomes positively charged. Hence, its is called an anion.
- An atom can also gain an electron, the electron number will be more than the protons. They then become negatively charged and are called cation.
Cations and ions are substances that are produced to attain a special type of bonding called electrovalent bonding.
Oppositely charged substances attracts one another.
Answer:
About 3m/s
Explanation:
If Julie ran eight quarter mile laps, then she ran a total of 1/4 * 8=2 miles. 2 miles is about 3220 meters, and 18 minutes is 1080 seconds, meaning that her average velocity was about 3m/s. Hope this helps!
Let's look at them in turn until we find the correct answer:
A) Rile is a kind of formation on the moon, but it's not a mineral
B) brecchia is a kind of rock composed of broken minerals. But, lunar breccias would not be similar to those found on earth
C) is the correct answer! it's a mineral containing silica
Answer:
the energy when it reaches the ground is equal to the energy when the spring is compressed.
Explanation:
For this comparison let's use the conservation of energy theorem.
Starting point. Compressed spring
Em₀ = K_e = ½ k x²
Final point. When the box hits the ground
Em_f = K = ½ m v²
since friction is zero, energy is conserved
Em₀ = Em_f
1 / 2k x² = ½ m v²
v = 
x
Therefore, the energy when it reaches the ground is equal to the energy when the spring is compressed.
Answer:
cation, anion
Explanation:
Binary Ionic Compounds- Binary means 2, ionic relates to charges. Therefore binary ionic compounds have TWO elements, with charges that cancel eachother out. The cation (or positive charge) goes before the anion (or negative charge)
example:
NaCl
Na^+1
Cl^-1
Sodium Chloride
