Table of Contents
How do you know if atoms have similar properties?
Two different elements have similar chemical properties when they have the same number of valence electrons in their outermost energy level. Elements in the same column of the Periodic Table have similar chemical properties.
Do atoms in the same row have similar properties?
Each row of the periodic table is called a period and each column of the periodic table is called a group (or family). Some groups have specific names like the halogens or noble gases. Elements within the same period or group have similar properties.
What do all atoms of the same electron have in common?
When an atom has an equal number of electrons and protons, it has an equal number of negative electric charges (the electrons) and positive electric charges (the protons). Atoms without an equal number of electrons and protons are more common than many people realize, such as the atoms found in table salt.
Can atoms of the same element have different properties?
Yes, all things are made of atoms, and all atoms are made of the same three basic particles – protons, neutrons, and electrons. But, all atoms are not the same. The difference in the number of protons and neutrons in atoms account for many of the different properties of elements.
What are the 3 elements that have similar properties?
One such grouping includes lithium (Li), sodium (Na), and potassium (K): These elements all are shiny, conduct heat and electricity well, and have similar chemical properties.
What things do all atoms have in common?
The common feature is that the atoms of all elements consist of electrons, protons, and neutrons.
Can atoms change from one element to another?
Transmutation or nuclear transmutation is a process that involves a change in the nucleus of an atom. When the number of protons in the nucleus of an atom changes, the identity of that atom changes as it is turned into another element or isotope. This transmutation process can be either natural or artificial.
What’s the relationship between elements and atoms?
Everything on Earth is made of atoms. Each single atom represents an element because an element is a material that is made of only one type of atom. Gold, silver, lithium, strontium, and neon are all elements, as are all of the other items on the periodic table. When elements combine, they form molecules.
Why do elements have the same chemical properties?
Elements that have similar properties are usually in the same group or family of the periodic table. Within the same group elements have similar electron configurations because the have the same number of valence electrons. Valence electrons are the outermost electrons that are lost, gained or shared with other atoms through chemical reactions.
Electron arrangements and the periodic table Electronic structure feature Link to the periodic table Number or numbers of shells Period number Number of electrons in outermost shell Group number Total number of electrons in all shells Atomic number
What happens when elements have the same number of valence electrons?
Elements with the same number of valence electrons tend to react in the same ways and produce the same types of compounds. Here are a few examples: The Group 1 elements, called Alkali Metals, have one valence electron. The lose this electron to form +1 ion, which gives them the stable electron configuration of a Noble Gas.
How can we determine the electron configuration of an atom?
To determine the electron configuration for any particular atom, we can “build” the structures in the order of atomic numbers.