A soluble ionic compound in aqueous form will be able to 4. conduct current
An aqueous ionic compound is able to conduct current because:
As a result of being able to move around in a solution, the ions of aqueous compound will be able to carry electricity from one point to another and so will be able to conduct electricity.
In conclusion, aqueous solutions of ionic compounds can conduct current.
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Answer:
4. conduct current
The answer is: elements in the same group of periodic system have similar properties.
Dmitri Mendeleev published a periodic table of the chemical elements in 1869.
Mendeleev noted gaps in the table and predicted then undiscovered elements existed eka-silicon (germanium) and eka-boron (scandium).
For example, germanium discovered in 1886 and it had proporties as Mendeleev predicted.
There are 118 unique substances (elements) arranged on an amazing chart that reveals their hidden secrets to anyone who knows how to read it.
The first chemical element is hydrogen (atomic number is 1) and the last is oganesson (atomic number is 118).
Elements are scheduled in periodic table, ordered by their atomic number.
B) neutrons
C) positrons
D) protons
Answer is B) - neutrons.
Both protons and neutrons contribute to the mass of an atom. But ₈¹⁷O atom has atomic number as 8. Hence, number of protons is 8. Atomic mass of the given atom is 17.
Atomic mass = number of protons + number of neutrons
Hence, number of neutrons in the given atom is 17 - 8 = 9.
So, the number of neutrons is greater than the number of protons. Hence the greatest composition of ₈¹⁷O atom is neutrons by mass.
a nebula
a comment
a planet
Answer:
D. a planet
Explanation:
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