All of the elements in
a period have the same number of atomic orbitals
. For example, every element in the top row (the first period) has one orbital for its electrons. All of the elements in the second row (the second period) have two orbitals for their electrons.
What is true about elements in the same column?
Explanation: For the elements in column 1,2 and 13-18 the atoms in the same
column have the same amount of outermost electrons
, called valence electrons.
What is true about elements in the same?
All the elements in one group have the same number of valence electrons
. The valence electrons are those on the energy level the most distant from the nucleus. These valence electrons are those involved in bonding with other atoms to form compounds.
What is a life element?
The four basic elements of life are:
Oxygen, hydrogen, nitrogen and phosphorus
. These four elements are found in abundance in both the human body and in animals. … In other words, human energy chain consists of four basic elements, or three compounds: Water, air and fire (light).
Which two elements are in the same period?
| Hydrogen | Rubidium | Strontium | Yttrium | Zirconium | Niobium |
|---|
What do elements have in common?
The common feature is that the atoms of all elements consist of
electrons, protons, and neutrons
.
How would you explain the way the periodic table is arranged?
The periodic table of elements arranges all of the known chemical elements in an informative array. Elements are arranged from left to right and top to
bottom in order of increasing atomic number
. Order generally coincides with increasing atomic mass. The rows are called periods.
What are 3 elements that have similar properties?
Fluorine (F), chlorine (Cl), bromine (Br), and iodine (I)
also exhibit similar properties to each other, but these properties are drastically different from those of any of the elements above.
What is the most useful element?
Silicon
is one of the most useful elements to mankind.
What are the 6 element of life?
The six most common elements of life on Earth (including more than 97% of the mass of a human body) are
carbon, hydrogen, nitrogen, oxygen, sulphur and phosphorus
. The colors in the spectra show dips, the size of which reveal the amount of these elements in the atmosphere of a star.
Which element is highest in human body?
The first chemical element with the highest percentage is
Oxygen
and the last one with the lowest percentage is Magnesium. The unit for the elements in the human body is %.
Which element in Period 2 has most mass?
The element in Period 2 with most mass is clearly the element with the highest atomic number, Z , and that is
Ne
, Z=10 , 21.08⋅g⋅mol−1 .
What element is soft and shiny?
Group 1A (or IA) of the periodic table are the alkali metals:
hydrogen
(H), lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr). These are (except for hydrogen) soft, shiny, low-melting, highly reactive metals, which tarnish when exposed to air.
Is a period having elements from atomic number 11 to 18?
Answer:
magnesium
Aluminium silicon phorophorus chlorine argon suplhure.
What do all atoms in the same element have in common?
The fundamental characteristic that all atoms of the same element share is
the number of protons
. All atoms of hydrogen have one and only one proton in the nucleus; all atoms of iron have 26 protons in the nucleus.
What do elements in the same family have in common?
All the members of a family of elements have
the same number of valence electrons and similar chemical properties
.
