Table of Contents
What do all atoms of same element have in common?
The fundamental characteristic that all atoms of the same element share is the number of protons. All atoms of hydrogen have one and only one proton in the nucleus; all atoms of iron have 26 protons in the nucleus.
How are atoms of the same element similar?
Atoms of the same element consist of the same atomic number that is number of protons or electrons and different mass number that is number of neutrons. This variation or change in the number of neutrons in an atom gives rise to different isotopes of an element. An element with different isotopes occurs in nature.
What does every element in the same group have in common?
The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. They are the electrons involved in chemical bonds with other elements. Every element in the first column (group one) has one electron in its outer shell.
Can two elements be exactly alike?
No. Although two such atoms are essentially chemically identical (they will chemically react in the same way), they are not completely identical. The nucleus of an atom contains neutrons and protons bonded tightly together. The same chemical element can have a different number of neutrons and still be the same element.
Who first said atoms are indivisible?
Democritus of
Leucippus of Miletus (5th century bce) is thought to have originated the atomic philosophy. His famous disciple, Democritus of Abdera, named the building blocks of matter atomos, meaning literally “indivisible,” about 430 bce.
What does each element have its own atom?
We learned in the atoms and elements sections that each element has its own unique atom which is made up of a specific number of protons. The number of protons determines the atomic number of the element. Each atom also has the same number of electrons as protons.
What do all atoms of one element have in common?
The common feature is that the atoms of all elements consist of electrons, protons, and neutrons. Explanation: All atoms have a dense central core called the nucleus. The nucleus consists of two kinds of particles: neutrons, which have no charge. Surrounding the nuclei of all atoms are the electrons, which have a charge of -1.
Does each element have its own atomic number?
Each element on the periodic table has its own atomic number. In fact, this number is how you can distinguish one element from another. The atomic number is simply the number of protons in an atom.
Do all atoms of the same element have the same properties?
Atoms of the same element have the same chemical properties. The only differences between atoms of the same element are the number of neutrons in the nucleus and the atomic weight of each isotope.