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What happens to the size of the atoms as you move across a period on the periodic table?
Atomic size decreases across periods going from left to right because the addition of protons to the nucleus contracts the electrons around the atom. Size typically increases going down a group due to an increasing number of electron shells, where the inner shells reduce the attractive forces of the nucleus and repel the electrons in the outer shell. From this we can deduce that helium (He) has the smallest size and francium (Fr) the largest.
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Why are potassium and bromine kept in the same period?
Potassium and bromine are kept in the same period (period 4) of the periodic table because they have the same number of electron shells in their atoms. Both elements are located in period 4 because they follow the periodic trend of increasing atomic number and electron configuration across a row of the periodic table.
How many atoms fit across the period at the end of this sentence?
Assuming you are talking about a period made by carbon atoms (Pencil lead is almost pure carbon) and that period has a mass of 0.0001g Then the answer is 5x1018 atoms.There are 12.011g of carbon per mol, there are 6.022x1023 atoms per mol.1mol | 6.022x1023 atoms | 0.001 g |-----------|--------------------------|-------------| = 5x1018 atoms/period12.011g | 1 mol | period |
What is the position of period in the periodic table?
The period of an element in the periodic table refers to its horizontal row. Each period represents the number of electron shells an element's atoms have.
What define period of the periodic table?
The period of the periodic table refers to the horizontal rows in the table, which indicate the number of electron shells an element's atoms have. As you move across a period, the number of protons and electrons increases by one, leading to a gradual change in properties.
What happens to electronegativity as you go across a period?
Electronegativity increases as you go across a period from left to right due to a stronger pull on electrons by the increasing positive charge of the nucleus. This results in atoms becoming more effective at attracting electrons.
Why don't atoms simply get larger you read across the periodic table?
because the no. of shells in the atoms across the Periodic Table remains the same
What happens to the characteristics of atoms in a period as you go across a period?
As you move across a period in the periodic table, the atomic number increases, leading to a greater positive charge in the nucleus. This results in stronger attraction between the nucleus and the electrons, causing a decrease in atomic radius. Additionally, elements generally become less metallic and more non-metallic, with increasing electronegativity and ionization energy as you progress from left to right across the period.
Why are potassium and bromine kept in the same period?
Potassium and bromine are kept in the same period (period 4) of the periodic table because they have the same number of electron shells in their atoms. Both elements are located in period 4 because they follow the periodic trend of increasing atomic number and electron configuration across a row of the periodic table.
Is it true Moving across a row of the periodic table the atoms tend to get bigger?
Yes, as you move across a row (period) of the periodic table from left to right, the atomic radius tends to decrease. This is due to the increasing effective nuclear charge, which pulls the electrons closer to the nucleus, making the atoms smaller.
Why don't atoms simply get larger as you read across the periodic table?
Atoms do not simply get larger as you move across the periodic table because the increase in positive charge in the nucleus is accompanied by an increase in the number of electrons, leading to increased electron-electron repulsions that can counteract the increased nuclear charge. Additionally, the increase in effective nuclear charge (Zeff) across a period can cause the electrons to be pulled closer to the nucleus, reducing the size of the atom.
How many atoms fit across the period at the end of this sentence?
Assuming you are talking about a period made by carbon atoms (Pencil lead is almost pure carbon) and that period has a mass of 0.0001g Then the answer is 5x1018 atoms.There are 12.011g of carbon per mol, there are 6.022x1023 atoms per mol.1mol | 6.022x1023 atoms | 0.001 g |-----------|--------------------------|-------------| = 5x1018 atoms/period12.011g | 1 mol | period |
What is the position of period in the periodic table?
The period of an element in the periodic table refers to its horizontal row. Each period represents the number of electron shells an element's atoms have.
How the period in the periodic table?
The no of period of Periodic Table tells the no of shells in atoms, so their atomic sizes and other physical properties may be imagined.
Why does each period in the periodic table end with a noble gas?
Each period in the periodic table ends with a noble gas because they have complete outer electron shells, making them stable and unreactive. This pattern reflects the filling of electron shells in atoms as you move across a period.
What define period of the periodic table?
The period of the periodic table refers to the horizontal rows in the table, which indicate the number of electron shells an element's atoms have. As you move across a period, the number of protons and electrons increases by one, leading to a gradual change in properties.
What happens to electronegativity as you go across a period?
Electronegativity increases as you go across a period from left to right due to a stronger pull on electrons by the increasing positive charge of the nucleus. This results in atoms becoming more effective at attracting electrons.
What do you call elements in a row on the periodic table?
Elements in a row on the periodic table are called periods. They represent the number of electron shells an element's atoms have. Each period corresponds to the energy level of the electrons in an element's atoms.
