Answer:
b
Explanation: i did it and it wasn't c it was b
reactivity
valence electrons
atomic radii
atomic mass
Explanation:
When we move down a group then there will be increase in number of shells present in an atom. Due to this there will be increase in atomic radii of the atom.
As a result, there will be increase in atomic mass of the atom also. Whereas reactivity of metals increases on moving down the group as the valence shell moves away from the nucleus. So, it becomes easy for the metal atom to lose an electron.
On the other hand, reactivity of non-metals decreases on moving down the group.
So, we can conclude that properties increase when moving down a group of the periodic table are atomic radii and atomic mass.
Atomic Mass.
Reactivity decreases as you go down a group.
Atomic Radius also decreases as you go down a group.
Valence electrons are the same within a group.
Atomic mass, however, increases as you go down a group.
Hope this helps!
John Dalton contribute to the understanding of the atom that all matter was composed of atoms, indivisible and indestructible building blocks.
While all atoms of an element were identical, different elements had atoms of differing sizes and mass.
An atom is a particle of matter that uniquely defines a chemical element.
An atom consists of a central nucleus that is usually surrounded by one or more electrons.
Dalton's atomic theory was the first complete attempt to describe all matter in terms of atoms and their properties.
Dalton based his theory on the law of conservation of mass and the law of constant composition.
The theory states that all matter is made of atoms, which are indivisible.
(1) All matter is composed of tiny, indivisible particles, called atoms, that cannot be destroyed or created.
(2) Each element has atoms that are identical to each other in all of their properties.
Learn more about the atom here:
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Explanation:
In chemistry, internodes refer to the points in the structure of a molecule or molecular chain where carbon atoms are located. Internodes are carbon atoms that are directly connected by a single bond. These carbon atoms are often called "C" followed by a number indicating their position in the chain. Carbon atoms that are not internodes are called "terminal carbons" and are bonded to other atoms or chemical groups. The structure of internodes and terminal carbons is important for understanding the geometry and reactivity of organic molecules.
Answer:
A suction bulb or pipette pump to suction the sample.
Explanation:
There are different types of pipettes that can be used in a laboratory: