What element has 48 neutrons and is a gas?

Name Krypton
Atomic Mass 83.8 atomic mass units
Number of Protons 36
Number of Neutrons 48
Number of Electrons 36

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Similarly one may ask, what element is in period 2 and has an atomic mass of 11?

Boron (B) is the chemical element with atomic number 5, occurring as 10B and 11B. At standard temperature and pressure, boron is a trivalent metalloid that has several different allotropes. Amorphous boron is a brown powder formed as a product of many chemical reactions.

is krypton a gas? Krypton (from Ancient Greek: κρυπτός, romanized: kryptos "the hidden one") is a chemical element with the symbol Kr and atomic number 36. It is a colorless, odorless, tasteless noble gas that occurs in trace amounts in the atmosphere and is often used with other rare gases in fluorescent lamps.

Likewise, people ask, what element has 4 neutrons and is metallic?

beryllium

What element is in period 5 and has 51 neutrons?

#40 - Zirconium - Zr.

Related Question Answers

What is the heaviest element?

uranium

What are the lightest elements?

The lightest chemical elements are hydrogen and helium, both created by Big Bang nucleosynthesis during the first 20 minutes of the universe in a ratio of around 3:1 by mass (or 12:1 by number of atoms), along with tiny traces of the next two elements, lithium and beryllium.

What are the first 50 elements?

Terms in this set (50)
  • H. Hydrogen.
  • He. Helium.
  • Li. Lithium.
  • Be. Beryllium.
  • B. Boron.
  • C. Carbon.
  • N. Nitrogen.
  • O. Oxygen.

What is the lightest element that is not a gas?

Hydrogen (symbolized H) is one of the elements. Its atomic number is 1 and it is a colorless, tasteless, odorless nonmetallic gas. Hydrogen is highly flammable and is the lightest of all the elements.

Which element has an AR value of 32?

Germanium - Element information, properties and uses | Periodic Table.

How do you find the electrons?

The number of protons, neutrons, and electrons in an atom can be determined from a set of simple rules.
  1. The number of protons in the nucleus of the atom is equal to the atomic number (Z).
  2. The number of electrons in a neutral atom is equal to the number of protons.

What is atomic mass number?

The mass number (symbol A, from the German word Atomgewicht [atomic weight]), also called atomic mass number or nucleon number, is the total number of protons and neutrons (together known as nucleons) in an atomic nucleus. The mass number is different for each different isotope of a chemical element.

What element has 51 neutrons?

Antimony

Which is a transition element?

The transition elements are those elements having a partially filled d or f subshell in any common oxidation state. The term "transition elements" most commonly refers to the d-block transition elements. They have several oxidation states. They usually form colored compounds. They are often paramagnetic.

What is the name of the halogen that is in period 3?

Chlorine is a halogen in group 17 and period 3.

What is the second most reactive metal?

So we just covered the alkali metals in Group I. You will find the alkaline earth metals right next door in Group II. This is the second most reactive family of elements in the periodic table.

Which is more reactive oxygen or fluorine?

Fluorine is the most reactive because it has the strongest attraction for oxygen. Since electronegativity decreases going to the left of the periodic table, oxygen is the second most reactive element on the list. Nitrogen is the third most reactive.

Is Lithium a metal?

Lithium. Lithium is part of the alkali metal group and can be found in the first column of the periodic table right below hydrogen. Like all alkali metals it has a single valence electron that it readily gives up to form a cation or compound. At room temperature lithium is a soft metal that is silvery-white in color.

Which element in Period 2 of the periodic table is the most reactive nonmetal?

Fluorine

What is a period number on the periodic table?

Periods in the periodic table. In each period (horizontal row), the atomic numbers increase from left to right. The periods are numbered 1 through 7 on the left-hand side of the table. Elements that are in the same period have chemical properties that are not all that similar.

Why does the second period have 8 elements?

The elements are ordered into periods based on which electron shells are being filled (from left to right). In the second period, the second shell is being filled. And so on. There are 8 elements in period 2 because all those elements have electrons in the second shell and no electrons in the third shell.

Which elements atoms are the smallest?

Atomic radii vary in a predictable way across the periodic table. As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and francium is the largest.

Can Krypton kill you?

Since it doesn't combine with other elements, it doesn't take part in chemical reactions, so it will not burn, cause corrosion, or do other chemical-like things. It is, however, possible for krypton to hurt you. This isn't because the krypton is poisonous, but because of the lack of oxygen in the room.

Is Krypton Cancelled?

Syfy has opted to cancel the drama, which told the story of Superman's grandfather, after two seasons. Syfy renewed Krypton for a second season in May 2018 after the drama ranked as the Chris McCumber-led network's best series premiere in more than three years and its most-watched debut series in four years.

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