It is important to ensure that treated water remains safe to drink when it is stored after treatment because of the following reasons:
The one way to make stored water safe is that stored it in clean container.
It is important to ensure that the treated water remains safe to drink when it is stored after the treatment because
The one way to make stored water safe is that stored it in clean container and do not store the containers of water in direct sunlight.
Thus, we can say that it is important to ensure that treated water remains safe to drink when it is stored after treatment due to prevent us from diseases, germs, viruses and othercontainments. After treatment of water it is must be tested once to that it is stored to ensure that it is safe for drinking or not.
Learn more about the importance of clean water here: brainly.com/question/25945773
#SPJ2
of each other.
Answer: isotopes
Explanation: Isotopes are atoms of the same element having the same atomic number but different atomic masses. Atomic number of an element is the number of protons contained in the nucleus of an atom. Atomic mass is the sum of the protons and neutrons in the nucleus of an atom.
The difference in the atomic masses is due to the number of neutrons in the atoms. This isotopes have the same number of protons but different number of neutrons. The phenomenon whereby atoms of the same element have the same atomic number but different mass number is called isotopy.
Answer: The direct answer is that they are Isotopes of one another.
Explanation:
Hai :3
Do you know how to find valence electrons? The amount of valence electrons that an element has depends on its group number, with an exception towards transitional elements.
For example, Oxygen is in group 16, which makes it have 6 valence electrons. Group 1 has 1, group 2 has 2, group 13 has 3, group 14 has 4, and so on.
What about transitional elements? The elements ranging from group 3 until 11 have different valence electrons because (advanced) if you look at their electron configuration, they have d orbital electrons (they can be edited), which gives them a varied valence configuration.
1. Iodine: Group 17 - 7 valence electrons Calcium: Group 2 - 2 valence electrons Chlorine: Group 17 - 7 valence electrons Sodium - Group 1 - 1 valence electron Neon - Group 18 - 8 valence electrons Copper - Group 11 - *Copper is a transitional element!* Those within group 11 usually have either 1 or 2 electrons. Your teacher did not specify which copper he's asking, so you could say that there is Copper (I), which has 1 valence electron, and also Copper (II), which has 2 valence electrons.
Moving to your second question, to see how many electron shells an element has, you look at where they are in their period (horizontal row)
For example, oxygen is in period 2, therefore, it has two electron shells. Period 1 has 1, period 2 has 2, period 3 has 3, and so on.
1. 1. Iodine: Period 5 - 5 electron shells Calcium: Period 4 - 4 electron shells Chlorine: Period 3 - 3 electron shells Sodium - Period 3- 1 electron shells Neon - Period 2 - 2 electron shells Copper - Period 4 - 4 electron shells
Answer:
Do you know how to find valence electrons? The amount of valence electrons that an element has depends on its group number, with an exception towards transitional elements.
For example, Oxygen is in group 16, which makes it have 6 valence electrons. Group 1 has 1, group 2 has 2, group 13 has 3, group 14 has 4, and so on.
What about transitional elements? The elements ranging from group 3 until 11 have different valence electrons because (advanced) if you look at their electron configuration, they have d orbital electrons (they can be edited), which gives them a varied valence configuration.
1. Iodine: Group 17 - 7 valence electrons Calcium: Group 2 - 2 valence electrons Chlorine: Group 17 - 7 valence electrons Sodium - Group 1 - 1 valence electron Neon - Group 18 - 8 valence electrons Copper - Group 11 - *Copper is a transitional element!* Those within group 11 usually have either 1 or 2 electrons. Your teacher did not specify which copper he's asking, so you could say that there is Copper (I), which has 1 valence electron, and also Copper (II), which has 2 valence electrons.
Moving to your second question, to see how many electron shells an element has, you look at where they are in their period (horizontal row)
For example, oxygen is in period 2, therefore, it has two electron shells. Period 1 has 1, period 2 has 2, period 3 has 3, and so on.
1. 1. Iodine: Period 5 - 5 electron shells Calcium: Period 4 - 4 electron shells Chlorine: Period 3 - 3 electron shells Sodium - Period 3- 1 electron shells Neon - Period 2 - 2 electron shells Copper - Period 4 - 4 electron shells
Explanation: