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How does the atomic radius of argon compare to krypton?
The atomic radius of argon is smaller than the atomic radius of krypton. This is because as you move down a group on the periodic table, the atomic radius tends to increase due to the addition of extra electron shells. Argon is located above krypton in the periodic table, so it has a smaller atomic radius.
What element has an atomic number that is one greater than platinum?
Platinum has an atomic number of 78. If you increase the atomic number by one, you find Gold, with an atomic number of 79.
Is temperature the only thing that affects density?
It is the easiest way to affect the volume which would change the density. However, if you increase the pressure but keep temperature constant the volume will also change. Any change in volume affects density.
What will happen to the state of the substance the atomic or molecular activity and the shape of the graph when thermal energy is added?
When thermal energy is added to a substance, the atomic or molecular activity will increase, leading to higher kinetic energy of the particles. This results in the substance changing states from solid to liquid, and then to gas, if the temperature continues to rise. The shape of the graph will show an increase in temperature with corresponding changes in state, known as phase transitions.
When a radioactive isotope emits a its atomic number increases?
When a radioactive isotope emits a beta particle (high-energy electron), a neutron in the nucleus is converted into a proton. This causes the atomic number of the nucleus to increase by one because a proton has a positive charge and changes a neutron to a proton increases the atomic number.
What happens to the chemical reactivity of alkali metals as you increase atomic numbers?
The chemical reactivity of alkali metals increase when the atomic number increase.
What is the trend in atomic mass going down a group?
The atomic mass will increase. As you go down a group in the periodic table the atomic number rises, this increase in the number of protons is accompanied by an increase in the number of neutrons to stabilise the nucleus, and both together lead to an increase in atomic mass.
What accompanies an increase in atomic number within a specific period?
An increase in atomic number within a specific period corresponds to an increase in the number of protons in the nucleus of the atom. This leads to a higher positive charge, causing the outer electrons to be more strongly attracted to the nucleus. As a result, the atomic size tends to decrease across a period as atomic number increases.
How do atomic numbers and atomic masses increase in the periodic table?
Atomic numbers increase from left to right across a period on the periodic table. This is because each element in a period has one more proton in its nucleus compared to the element before it. Atomic masses generally increase from left to right as well, but there may be deviations due to isotopes or other factors. Within a group or column, atomic numbers and atomic masses increase from top to bottom as each successive element has more electrons and neutrons than the one above it.
Ifthe atomic number increase what happens to the atomic mass?
Nothing. They are not correlated
How does the atomic radius increase or decrease horizontally on the periodic table?
Atomic radius decreases horizontally in periodic table. This is due to increase in nuclear charge.
Does atomic radii increase as energy levels increase?
Yes, atomic radii generally increase as energy levels increase. This is because higher energy levels correspond to electrons being located farther from the nucleus, leading to larger atomic sizes. Additionally, as more electron shells are added, the increased distance from the nucleus outweighs the effects of increased nuclear charge, resulting in a larger atomic radius.
What properties increase down the periodic table?
Atomic Mass
Why does atomic size increase from left to right across a period?
atomic size decreases across a period
What is the Group trend Atomic radius?
The group trend for atomic radius is that it tends to increase down a group in the periodic table. This is because as you move down a group, the number of electron shells increases, leading to a larger atomic radius. Additionally, the effective nuclear charge decreases down a group, which also contributes to the increase in atomic radius.
Towards the bottom of the periodic table does the atomic mass increase or decrease?
Towards the bottom, atomic mass increases. Atomic number also increases.
What does the number of electrons in an atom do as the atomic number increases?
Increase
