Table of Contents
- 1 What atom has the same number of protons and electrons?
- 2 What atoms have the same number of protons?
- 3 Why is an atom neutral?
- 4 Are protons always equal neutrons?
- 5 Can an atom have a different number of neutrons?
- 6 Are atoms that carry an electric charge?
- 7 Do protons and neutrons need to be the same number?
- 8 Do protons nuetrons and electrons have the same mass?
What atom has the same number of protons and electrons?
Atoms are neutral in electrical charge because they have the same number of negative electrons as positive protons (Table 4.5. 1)….Atomic Number.
| Name | Hydrogen |
|---|---|
| Protons | 1 |
| Neutrons | 0 |
| Electrons | 1 |
| Atomic Number (Z) | 1 |
Why do atoms contain the same number of protons and electrons?
The proton number is always the same as the atomic number for the element. The protons and neutrons are found in the nucleus of the of the atom and make up the major it of the mass of the atom. In order for the atom to remain electrically neutral the protons and electrons must balance each other.
What atoms have the same number of protons?
Two atoms with the same atomic number, but different mass numbers (same number of protons, different number of neutrons), are called isotopes, or isotopic nuclides. Having different numbers of neutrons changes the mass of these atoms, so isotopes have slight variations in their physical and chemical behavior.
Are the number of protons and electrons the same in an element?
The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons.
Why is an atom neutral?
Electrons have electric charge of -1 and the number of electrons in an atom is equal to the number of protons. Heavier atoms tend to have more neutrons than protons, but the number of electrons in an atom is always equal to the number of protons. So an atom as a whole is electrically neutral.
How do we determine which element an atom is?
The number of protons in the nucleus determines which element an atom is, while the number of electrons surrounding the nucleus determines which kind of reactions the atom will undergo.
Are protons always equal neutrons?
Neutrons are all identical to each other, just as protons are. Atoms of a particular element must have the same number of protons but can have different numbers of neutrons.
Is atomic number equal to number of electrons?
The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of every atom of that element. It is identical to the charge number of the nucleus. In an uncharged atom, the atomic number is also equal to the number of electrons.
Can an atom have a different number of neutrons?
The number of neutrons can be different, even in atoms of the same element. Atoms of the same element that contain the same number of protons, but different numbers of neutrons, are known as isotopes.
What element has most neutrons?
Uranium
Uranium, for example, has the largest naturally occurring nucleus with 92 protons and over 140 neutrons. where, A is the mass number of the element’s nuclei, and Z is the atomic number (X stands for the element symbol, for example: H is for hydrogen, O is for oxygen, Na for sodium, etc.)
Are atoms that carry an electric charge?
The protons and electrons of an atom are attracted to each other. They both carry an electrical charge. Protons have a positive charge (+) and electrons have a negative charge (-). The positive charge of the protons is equal to the negative charge of the electrons.
Is atoms are always neutral in nature?
Atoms are always neutral in nature. Atoms consist of three basic particles, protons, electrons, and neutrons. The nucleus (center) of an atom contains the protons (positively charged) and the neutrons (no charge).
Do protons and neutrons need to be the same number?
The number of protons is always the same in atoms of the same element. The number of neutrons can be different, even in atoms of the same element. Atoms of the same element that contain the same number of protons, but different numbers of neutrons, are known as isotopes.
What atom has 6 protons 6 neutrons and 6 electrons?
all isotopes of carbon atoms have 6 electrons and 6 protons, which is why the atomic number of carbon is 6. a carbon-12 atom has 6 protons, 6 neutrons, and 6 electrons, so its mass number is 12 and its atomic number is 6.
Do protons nuetrons and electrons have the same mass?
Protons and neutrons have approximately the same mass. However, one proton weighs more than 1,800 electrons. Atoms always have an equal number of protons and electrons, and the number of protons and neutrons is usually the same as well.
Do protons, neutrons or electrons have the smallest mass?
The electron is the smallest in multiple senses. The proton and neutron have nearly the same mass (the neutron is about 0.2% heavier), but the electron is almost 2000 times lighter. The electron is also smaller in the sense that it is elementary.