Aluminium, Al, has 13 protons.
Sodium, Na, is the element that has eleven protons.
The element with a mass number of 28 and 13 protons is aluminum (symbol Al). It has 13 protons, as indicated by its atomic number, and a mass number of 28, which is the sum of its protons and neutrons in the nucleus.
13 protons an easy way to remember what number of protons an element has is APES. A-atomic number, P-protons, E-electrons, S-same, so the atomic number and the numbers of protons and electrons are the same number
The number of neutrons is irrelevant for determining the element. 13 protons makes it aluminum. (The isotope of aluminum with 13 neutrons is unstable and radioactive, with a half-life of about 720,000 years.)
The number of protons identifies this element as aluminum, which has an atomic number of 13. The number of protons is an element's atomic number on the periodic table. Every element has its own unique atomic number which defines it as that element.
The atomic number of a chemical element is equal to the numbers of protons in the atomic nucleus; as an example: aluminium, with the atomic number 13 has also 13 protons. All the isotopes of an element has the same number of protons.
Aluminum or Al. ---Hope I could help!
An aluminum atom has 13 protons, 14 neutrons, and 13 electrons. The number of protons determines the element (which in this case is aluminum), while the sum of protons and neutrons determines the isotope of the element.
Aluminum has 13 protons. The atomic number assigned on the periodic table is equivalent to the number of protons an element has.
Aluminum has 13 protons versus 6 for carbon
Aluminium. Aluminium. Aluminium.
The element with 13 protons is aluminum, and its chemical symbol is Al. The mass number of 26 indicates that this isotope of aluminum has 13 neutrons (26 - 13 = 13). Therefore, the symbol for this isotope can be written as ( ^{26}\text{Al} ).