Which of the following has 28 electrons?
Nickel is the first element in the tenth column of the periodic table. It is classified as a transition metal. Nickel atoms have 28 electrons and 28 protons with 30 neutrons in the most abundant isotope.
Does Zn have 28 electrons?
The Zn2+ ion has lost two electrons, which leaves it with 30 protons and 28 electrons. The electron configuration of Zn2+ is 1s22s22p63s23p63d10 .
What atom has a mass number of 28?
The elements of the periodic table sorted by atomic mass
| Atomic Mass | Name chemical element | number |
|---|---|---|
| 55.845 | Iron | 26 |
| 58.6934 | Nickel | 28 |
| 58.9332 | Cobalt | 27 |
| 63.546 | Copper | 29 |
What ion has 30 protons 28 electrons?
The atomic number of zinc is 30, which means the number of protons is 30 and the number of electrons is 30. So ion of zinc with 28 electrons has ionic charge 2+.
What is a metal with 28 electrons?
NICKEL –
NICKEL – I am a metal with 28 electrons.
Why does zinc have 30 protons?
Explanation: The number of protons, i.e. positively charged nuclear particles, gives the identity of the element. Here Z = 30 ; therefore, the element is zinc. There are 26 neutral nuclear particles, so we have 56Zn .
What is the electron configuration of Zn 2+?
The Zn2+ ion has lost two electrons, which leaves it with 30 protons and 28 electrons. The electron configuration of Zn2+ is 1s22s22p63s23p63d10.
Which is the 28 element?
Nickel
Nickel is a chemical element with symbol Ni and atomic number 28.
What has 8 protons and 10 neutrons?
Because protons and neutrons are roughly equal in mass, an isotope’s number is equal to the sum of its protons and neutrons. Therefore, oxygen 16 has 8 protons and 8 neutrons, oxygen 17 has 8 protons and 9 neutrons, and oxygen 18 has 8 protons and 10 neutrons.
When does an atom become a cation what happens?
Positively charged atoms called cations are formed when an atom loses one or more electrons. For example, a neutral sodium atom (Z = 11) has 11 electrons. If this atom loses one electron, it will become a cation with a 1+ charge (11 − 10 = 1+).
How many unpaired electrons are present in Ni2 + cation?
Ni 2+ has two unpaired electrons. 23. (iii) It oxidies Fe at its boiling point. The oxide maybe The correct option is H 2 O. It is because- (i) H 2 O is an amphoteric oxide. So it can donate or accept lone pair of electrons.
What is the number of protons and electrons in Na?
11 protons, 10 electrons What is the number of protons and electrons in Na⁺ 16 protons, 18 electrons what is the number of protons and electrons in S²⁻ 12 protons, 10 electrons what is the number of protons and electrons in Mg²⁺ 34 protons, 35 electrons What is the number of protons and electrons in Br⁻ N₂O₄
How many electrons does a neutral oxygen atom have?
A neutral oxygen atom (Z = 8) has eight electrons, and if it gains two electrons it will become an anion with a 2− charge (8 − 10 = 2−). Iodine is an essential trace element in our diet; it is needed to produce thyroid hormone.