sticking to increasing at no within group: more soft
The atomic number increases but the atomic mass stays the same after the emission of a beta particle by a radioactive atom.
Alpha decay decreases the atomic number by two. Beta- decay increases the atomic number by one. Beta+ decay decreases the atomic number by one. Gamma decay does not change the atomic number. However, gamma decay is often incidental to a precipitating alpha or beta event that upsets the energy equilibrium in the nucleus, so the two are not unrelated.
An element's atomic number is equal to the amount of electrons or protons in an atom of that element. When an atomic number increases or decreases, the amount of electrons is changing.
The atomic mass number generally increases as you move across the periodic table from left to right. This is because the number of protons in the nucleus increases as you move to elements with higher atomic numbers.
.The atomic mass increases
metal -->nonmetal --> gaseous (metal --> nonmetal --> metalloid)
When going left to right across a period, the atomic number of element increases.
the number of protons change because of the more protons you add on
When the atomic number increases, the number of protons in the nucleus also increases. Since atoms are electrically neutral, the number of electrons in the atom would also increase to match the number of protons, maintaining a balanced charge.
The atomic number increases by one unit when a beta decay occurs.
The atomic number increases but the atomic mass stays the same after the emission of a beta particle by a radioactive atom.
Columns are vertical, so you are referencing a group of elements. The atomic number increases as you descend from top to bottom. Rows are horizontal, which references the periods. The atomic number increases as you go from right to left.
As the atomic number increases within a period (row) on the periodic table, the covalent radius generally decreases due to increasing nuclear charge pulling the electrons closer to the nucleus. Within a group (column), as the atomic number increases, the covalent radius tends to increase since new electron shells are being added, leading to a larger atomic size.
atomic radius increases down a group as the number of shells increases
Down a group, the atomic number generally increases, size increases, ionization energy decreases, reactivity increases.
The atomic number increases. The atomic number identifies a particular element and the elements are arranged in increasing order on the periodic table. Also, the atomic weight generally increases as well.
Alpha decay decreases the atomic number by two. Beta- decay increases the atomic number by one. Beta+ decay decreases the atomic number by one. Gamma decay does not change the atomic number. However, gamma decay is often incidental to a precipitating alpha or beta event that upsets the energy equilibrium in the nucleus, so the two are not unrelated.