Alkali.
This is irrelevant padding to make up the required number of words for an acceptable answer.
1a + 1b because they are different terms and could not be added together. But 1a × 1b would be 1
3
There is no digit in the thousands column. There is a 1 in the thousandths column.
1569 Does NOT have a hundredths column. NB However '1' is in the 'thousands' column '5' is in the 'hundreds' column (NB Note the spelling) '6' is in the 'tens' column '9' is on the 'units' column. When 'th' is used in the name it refers to the decimal position. In '1569' there is no decimal position.
The 4 is in the tenths column.
The group name of column 1 is alkali metals. They are metallic and basic in nature.
The alkali metals are group 1, also known as group 1A.
Potassium and Hydrogen
they all have one valence electron.
Hydrogen is in group 1 of the periodic table, also known as the alkali metals group.
The reactivity of the alkali metals increases as you go down column 1 (or 1A) in a periodic table. This occurs because the first ionization energy of the metals decreases, as a result of "shielding" the outermost electrons from the attraction of the positive nucleus by the inner electrons.
Lithium on the periodic table is found in the first group or family and the second period. The first family is often called the alkali metal family.
The ionic charge of a group 1A, 2A, or 3A ion is determined by the number of electrons lost or gained to achieve a full valence shell. Group 1A ions lose 1 electron to attain a +1 charge, group 2A ions lose 2 electrons for a +2 charge, and group 3A ions lose 3 electrons for a +3 charge.
12 + 1a - 1a + 1 = 1 + 0 + 1 = 2
Atoms in Group 1A (also known as Group 1 or alkali metals) typically have one electron in their outermost shell. This gives them a tendency to form +1 cations by losing this electron to achieve a stable electron configuration. Group 1A elements include lithium (Li), sodium (Na), potassium (K), and others.
mendeleev's name for a column of elements was groups.
Group 1A (1) elements in the periodic table all have 1 valence electron. This includes elements like hydrogen, lithium, sodium, and potassium.