Answer:
8 Protons
Explanation:
Oxygen is the 8th element in the periodic table. That means that oxygen has 8 protons and 8 electrons. To get the number of neutrons you take the atomic weight in this case 15.9999~16 and you subtract it by the number of protons.
Answer:
B. City B
Explanation:
From the weather chart, you can see that rain is indicated by the dot(.) sign. One dot means light rain and two dots mean steady light rain. The circle shading will show how much cloud in the city, ranging from no cloud(white circle), half covered (half black circle) and completely covered(black circle).
City A has neither cloud nor rain.
City B is completely covered by cloud and have steady light rain.
City C is half-covered with cloud, without rain.
The number of neutrons is variable, resulting in isotopes, which are different forms of the same atom that vary only in the number of neutrons they possess. Together, the number of protons and the number of neutrons determine an element's mass number.
Atomic radius
Explanation:
The increase in size on the periodic table can be compared to the atomic radius on the table.
Elements in the same group on the periodic table can be regarded as a family.
Atomic radius is the property used to quantify the size of an atom. It is taken as half of the inter-nuclear distance between two covalently bonded atoms of a non-metal or the distance between the nuclei of two metals.
- Across a nucleus, it decreases rapidly due to pull of the nucleus.
- Atomic radius increases down a group on the periodic table.
Learn more:
Periodic table brainly.com/question/2014634
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