Select all the correct answers The atomic number is used in determining...
The number of electrons
The number of protons
The number of neutrons
The number of valence electrons
The number electron shells
Drag and drop the answers below in the appropriate place describing the characteristics of the Helium element
❌: 2 ❌: 4.00 ❌: He ❌: Helium
The protons and electrons are found in the nucleus of an atom
Which of the following correctly defines valence electrons
The number of protons in the nucleus
The number of electrons around the nucleus
The number of electrons on the last electron shell
The number of neutrons in the nucleus
Which of the following pieces of information found on the periodic table can help us determine the number of electrons found in the element?
Atomic number
Atomic mass
The row number (period number)
The column number (group number)
Select from the drop down menus, the correct information regarding Magnesium. Number of protons: 12 2 3 24( 12, 2, 3, 24 ) Number of electrons: 12 3 2 24( 12, 3, 2, 24 ) Number of neutrons: 12 2 3 24( 12, 2, 3, 24 ) Number of electon shells: 3 2 12 24( 3, 2, 12, 24 ) Number of valence electrons: 2 3 12 24( 2, 3, 12, 24 )
Which one of the following elements has 5 neutrons?
Beryllium
Carbon
Boron
Lithium
Give the symbol of the element that has the following characteristics: The element with the atomic number of 93 is
Give the symbol of the element that has the following characteristics: The element on period 2 and is a part of group 4A is
Give the symbol of the element that has the following characteristics: The element that has 5 electrons around its nucleus is
