What is the trend in melting points in Group 1?

Trends in melting and boiling points When any of the Group 1 metals is melted, the metallic bond is weakened enough for the atoms to move more freely, and is broken completely when the boiling point is reached. The decrease in melting and boiling points reflects the decrease in the strength of each metallic bond.

What are the trends in Group 1 and Group 7?

But in Group 7 F to I they are are all non metals which means they LOVE electron so they will gain electrons. So group 1 atoms become ion when they loose their outer electron. They also loose their outer shell as they only have one electron for halogens they gain electrons so the radii slightly gets larger.

What are the physical trends of group 1 elements?

Physical properties of the group 1 elements

are soft (they can be cut with a knife)
have relatively low melting points.

What are some trends in a group?

Periodic trends are specific patterns in the properties of chemical elements that are revealed in the periodic table of elements. Major periodic trends include electronegativity, ionization energy, electron affinity, atomic radii, ionic radius, metallic character, and chemical reactivity.

What is the trend in boiling points in Group 7?

The melting points and boiling points of the halogens increase going down group 7. This is because, going down group 7: the molecules become larger. the intermolecular forces become stronger.

What is the trend of melting and boiling points?

Different groups exhibit different trends in boiling and melting points. For Groups 1 and 2, the boiling and melting points decrease as you move down the group. For the transition metals, boiling and melting points mostly increase as you move down the group, but they decrease for the zinc family.

What is the trend in boiling points in group 7?

Is group 1 or 7 more reactive?

As you go down group 1 (the alkali metals) in the periodic table, the elements get more reactive. As you go up group 7 (the halogens), again, the elements become more reactive.

What is the largest element in group 1?

Key Concepts

Trends: Decreasing	Group 1 Elements
Melting Point	First Ionisation Energy	name
highest	largest	lithium
↑	↑	sodium
↑	↑	potassium

Are group 1 metals 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.

What is the trend in reactivity in Group 1?

What is the trend in reactivity in Group 1? The reactivity of group 1 elements increases as you go down the group because: the atoms become larger. the outer electron becomes further from the nucleus. the force of attraction between the nucleus and the outer electron decreases.

What do the elements in Group 1 have in common?

The elements in group 1 are called the alkali metals. The alkali metals share similar physical properties. For example, they: The table shows the melting points of five alkali metals. Use this information to describe how melting point changes in group 1. Going down group 1, the melting point decreases.

What are the physical properties of Group 1?

Group 1 – physical properties. Group 1 contains elements placed in a vertical column on the far left of the periodic table. The elements in group 1 are called the alkali metals. The alkali metals share similar physical properties. For example, they: are soft (they can be cut with a knife) have relatively low melting points. have low densities.

What is the explanation for solubility trends in Group 1?

Group 1 cations : Li+, Na+, K+, Rb+, Cs+. * Let us consider some anions. When the anionic size is big, then as we move along the group the change in size of cation doesn’t affect much the values of Lattice energy. They almost have very close values) . Hence Solubility depends on Heat of hydration .