Explanation: Most periodic tables give at least the name, symbol, atomic number, and relative atomic mass (atomic weight) for each element.
What are four things a periodic table tells you about an element?
Within each element square, information on the element’s symbol, atomic number, atomic mass, electronegativity, electron configuration, and valence numbers can be found. At the bottom of the periodic table is a two row block of elements that contain the lanthanoids and actinides.
What are the 4 characteristics of elements?
Answer: All elements have certain characteristics that are summarized on the periodic table. These characteristics include the element’s symbol, atomic number, and atomic mass . Please mark as brainliest.
What does an element box tell you?
It represents the number of protons found in the nucleus of one atom of that particular element . See how the atomic number increases by one for each box as you move across the table in a period? This means that each element has its own special number of protons in each atom.
What information does each element box on the periodic table tell us?
The atomic number, the number at the top of each element box, is the number of protons in the nucleus and the number of electrons in the atom . The elemental symbol is an abbreviation of the element name. Some periodic tables do not include the element names, only the symbols.
What are 3 characteristics of elements?
All elements have certain characteristics that are summarized on the periodic table. These characteristics include the element’s symbol, atomic number, and atomic mass . You will learn how the number of protons in an atom relates to an element’s atomic number, and explore how isotopes affect the atomic mass.
What are the five characteristics of element?
These properties include color, density, melting point, boiling point, and thermal and electrical conductivity . While some of these properties are due chiefly to the electronic structure of the element, others are more closely related to properties of the nucleus, e.g., mass number.
What are 2 things can we learn about atoms from the periodic table?
- the element symbol, and thus name. ...
- The atomic number, which is equal to the number of protons in the nucleus.
- Since each proton has a +1 charge, you can also figure out the number of -1 electrons in the neutral atom.
What are 3 things the periodic table tells you about atoms?
- Mass.
- Common charge.
- Number of Protons, Neutrons, and Electrons.
- Class/Period (reaction characteristics and element properties)
- Valence Electrons.
- Group.
What element is soft and shiny?
Group 1A (or IA) of the periodic table are the alkali metals: hydrogen (H), lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). These are (except for hydrogen) soft, shiny, low-melting, highly reactive metals, which tarnish when exposed to air.
What is the smallest unit in an element?
Atoms . An atom is the smallest unit of a pure substance or element that can exist and still retain the properties of the original substance or element.
What is the number at the top of the element box?
The number above the symbol is the atomic mass (or atomic weight) . This is the total number of protons and neutrons in an atom. The number below the symbol is the atomic number and this reflects the number of protons in the nucleus of each element’s atom.
What two numbers can be used to identify an element?
There are two properties that can be used to identify an element: the atomic number or the number of protons in an atom . The number of neutrons and number of electrons are frequently equal to the number of protons, but can vary depending on the atom in question.
How is the chemical symbol of an element determined?
Answer: The number of protons defines what element it is and also determines the chemical behavior of the element. ... Atomic symbol: The atomic symbol (or element symbol) is an abbreviation chosen to represent an element (“C” for carbon, “H” for hydrogen and “O” for oxygen, etc.)
What does a number before an element mean?
The little number you see to the right of the symbol for an element is called a subscript. That number indicates the number of atoms of that element present in the compound . When balancing an equation, you can change the coefficients but not the subscripts.
