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Which is more reactive barium or cesium?
Cesium is more reactive than barium. Cesium is located lower down in Group 1 of the periodic table, making it more reactive than barium, which is further up the group. Cesium readily reacts with air and water, while barium is less reactive in comparison.
Who has a larger atomic radius Be or O?
N-- Because it has less electrons, the proton pull is smaller on each individual electron, holding them closer to the nucleus and making the radius smaller
How many protons would be present in an atom of barium?
There are four protons. Also four neutrons and four electrons
What happens when sodium sulphate is added to barium nitrate?
If the sodium sulfate and barium nitrate are both in solution in water, a precipitate of barium sulfate will be formed, because this salt is much less soluble in water than barium nitrate, sodium sulfate, or sodium nitrate.
How does atomic number change as you move from left to right?
I'm guessing you are acking Atomic Radius. The atomic radius decreases and you go left to right because the shielding effect from the lower electrons stays almost constent while the elements gain more protons adding to the effective nuclear charge pulling the electrons closer to the nucleus.
Why is the atomic radius of sulfur is less than sodium?
The atomic radius of sulfur is less than sodium because sulfur has more protons in its nucleus, leading to a stronger attraction to its electrons, making the atomic size smaller. Sodium has fewer protons and a larger atomic radius due to weaker attraction between its nucleus and electrons.
What is the difference between ammonia clock and caesium clock?
An ammonia clock measures time based on the frequency of microwave radiation absorbed by ammonia molecules, while a caesium clock measures time based on the vibrations of caesium atoms. Caesium clocks are more accurate and stable compared to ammonia clocks, making them the standard for defining the international unit of time, the second.
Atomic radius of silver?
A little bit more than cadmium; a little bit less than palladium.
How does ionic radius differ from atomic radius?
Ionic radius is the size of an ion after it has gained or lost electrons, leading to a change in the electron configuration and thus its size. Atomic radius refers to the size of an atom, typically measured as the distance from the nucleus to the outermost electron shell. Ionic radius is affected by the change in electron configuration, while atomic radius is more related to the position of the outer electrons in the neutral atom.
How does the presence of core electrons affect the atomic radius of elements?
When there is an anion (negative charge) the radius will be larger because it is more full whereas it will be smaller if it is a positive charge because of less electrons. ex largest to smallest radius (K-,K, K+)
What is the frequency of caesium atom in atomic clock?
9,192,631,770 Hz and varies less than one tenth of 10 billion second and therefore very accurate and precise to keep time.
This element is the most reactive alkali metal has an atomic number greater than caesium and has one less valence electron than calcium?
This chemical element is francium (Fr).
What is the relationship between the atomic radius and chemical reactivity of elements in the periodic table?
The atomic radius of an element is inversely related to its chemical reactivity. Smaller atomic radius generally leads to higher reactivity, as smaller atoms have a stronger attraction to other atoms and are more likely to form bonds. Conversely, larger atomic radius tends to result in lower reactivity, as larger atoms have weaker attraction and are less likely to form bonds.
Why francium is less metallic than caesium?
'Less metallic'? They are both metals.
Which is more reactive barium or cesium?
Cesium is more reactive than barium. Cesium is located lower down in Group 1 of the periodic table, making it more reactive than barium, which is further up the group. Cesium readily reacts with air and water, while barium is less reactive in comparison.
Who has a larger atomic radius Be or O?
N-- Because it has less electrons, the proton pull is smaller on each individual electron, holding them closer to the nucleus and making the radius smaller
Within a period what happens to the atomic radius you go down the column?
The atomic radius generally increases as you move down a column in the periodic table. This is because each successive element has an additional energy level, leading to larger orbits for the electrons and an overall increase in atomic size.
