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How many electrons are in the nucleus of an atom with the atomic number of 20?
None. Electrons are found in energy levels outside the nucleus, not in it. An atomic number of 20 tells you there are 20 protons in the nucleus of an atom, and 20 electrons in energy levels (or shells or orbitals depending on which model of the atom you are using) outside the nucleus.
What do these valence electrons do that make them are so important in chemistry?
the number of valence electrons determine the reactivity of the atoms
Does the number of electrons equal the atomic number?
Yes, the number of electrons in a neutral atom is equal to the atomic number. This is because in a neutral atom, the number of positively charged protons in the nucleus is balanced by an equal number of negatively charged electrons outside the nucleus.
When a clean surface of potassium metal is exposed to blue light electrons are emitted if the intensity of the blue light is increased what will also increase?
i have the same question on my test haha for me, the answers are: a) The number of electrons ejected per second b) the maximum kinetic energy of the ejected electrons c) the threshold frequency of the ejected electrons d) the time lag between the absorption of blue light and the start of emission of the electrons e) none of these A the number of electrons ejected per second,,,,, correct answer
How many electrons are in the nucleus of the atom of polominium?
Polonium's atomic number is 84. That means it has 84 protons and 84 electrons. However, none of these electrons are found in the nucleus, but rather outside of it in what is called the electron cloud.
What are the electrons in d and f subshells that are outside of the noble gas core?
The electrons in d and f subshells outside of the noble gas core are called valence electrons. These electrons are involved in chemical bonding and determining the reactivity of the atom. The number of valence electrons is important in predicting the element's properties.
How many electrons are outside the nucleus?
The number of electrons outside the nucleus depends on the atomic number of the element. For neutral atoms, the number of electrons is equal to the number of protons in the nucleus to maintain a balanced charge.
Whats a type of number that equals the amount of protons inside a nucleus and electrons outside a nucleus?
Atomic number represents the number of protons in the nucleus of an atom, which also equals the number of electrons outside the nucleus.
Are the number of electrons in the nucleus of an atom that element's atomic number?
There are no electrons in the nucleus of an atom, the electrons are in the orbitals around and outside the nucleus.There are no electrons in the nucleus of an atom, the electrons are in the orbitals outside and around the nucleus.
How many electrons are present outside the nucleus of the oxygen atom?
There are 6 electrons present outside the nucleus of an oxygen atom. Oxygen has an atomic number of 8, which indicates the number of protons and electrons in a neutral atom. Since the atomic number of oxygen is 8, it has 8 electrons, with 2 in the inner shell and 6 in the outer shell.
What is the maximum number of electrons for the outside energy level of an atom?
8
Why are the number of electrons in an atom important?
Electrons determine the chemical properties.
What is the most important factor in an elements place in the periodic table?
Its elemental weight
What happen to electorinic structure group1 and 7 as you go down?
the group number is the number of electrons in the outside shell.
How many electrons are in the nucleus of an atom with the atomic number of 20?
None. Electrons are found in energy levels outside the nucleus, not in it. An atomic number of 20 tells you there are 20 protons in the nucleus of an atom, and 20 electrons in energy levels (or shells or orbitals depending on which model of the atom you are using) outside the nucleus.
Type of number that equals the amount of protons inside a nucleus and electrons outside a nucleus?
atomic number3Li6
Which subatomic particles has a negative charge and is located outside the nucleus?
The nucleus of an atom is made of neutrons and protons. Electrons move around the outside of the nucleus. The number of electrons around an atoms nucleus compared to the number of protons in the nucleus determines the charge of an atom, and the charge of an atom effects the way that an atom reacts with other atoms.
