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Period 4 and period 5 of the Periodic Table have the same number of elements. There are 18 elements in each period. While some elements in period 4 are calcium, iron, and zinc, elements in period 5 are tin, antimony, and iodine.
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∙ 9y ago
Wiki User
∙ 12y agoThe periods of the periodic table are the horizontal rows. For example, Hydrogen and Helium are in the same period.
Wiki User
∙ 11y agoElements in the same period (horizontal rows on the periodic table) have the same number of electron energy levels.
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∙ 12y agoperiod 4 and 5
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What happens where two elements have the same atomic number?
No two different elements can have the same atomic number.
How many elements contain the same number of outer electrons as sodium?
The number of elements that contain the same type of outer electrons as sodium is 11.
Can atoms of different elements have the same number of protons be from the same element?
No. Each type of atom (element) has its own unique number of protons, which is called the atomic number. Atoms of the same element will always have the same atomic number (number of protons). Atoms of different elements will never have the same atomic number (number of protons).
How is each element placed in the periodic table?
Elements are arranged into rows in order of increasing mass, so that elements with similar properties were in the same column. They are organized by type, such as nonmetals, metals, and metalloids, and solids, liquid, gas, or not found in nature.
What do elements in a group have in common?
The elements in the same group have the same number of valence electrons and hence similar chemical and physical properties.
Which 2 periods have the same number of elements on the periodic table?
These are the periods 4 and 5.
What are the differences between groups and periods?
Groups consist of elements listed in the same column. These elements share similar chemical properties, such as number of valence electrons. Periods are the rows of elements. These elements do not share chemical properties, as periods are organized by increasing atomic number (number of protons).
What does a period on the periodic table tell us?
Elements in the same period has same number of valence shells.There are 7 periods in Periodic Table.
What are the rows called in the periodic table?
Rows in the Periodic Table are called Periods.There are 7 periods in total.All the elements in period have same number of energy levels.
Do elements in the same group or elements in the same period have more in common?
GROUPS have more in common than PERIODS. I don't know why, I just know the answer.From, Bryan Hollick
How are periods in the periodic table similar?
The elements in a given period have the same number of core electrons.
How are the elements in the periods in the periodic table related?
As you go down a group, the number of electrons in the outer shell is the same.
The rows going across the periodic table is known as periods and contain elements with the same number of?
Electron shells
What do rows have in common in the periodic table?
Elements of same row has equal number of shells.
What are elements in the same?
All elements in the same horizontal row of the Periodic Table are in the same period, there are 7 periods.
What are the outer and inner transition elements?
Same periods as the ones next to them (ie. 4-7). Called 'transition metals', has no group number.
Why are the elements on the periodic table separated into periods?
They are put into periods based on their number of electron shells.
