Revision Set 1 Atomic Structure IGCSE (K-CHEMISTRY)

In the periodic table of the elements, the _______ number gives you the total number of sub-atomic particles in the nucleus of the atom.

the name of forms of an element that have the same number of protons but a different number of neutrons

 

the name of forms of an element that have the same number of protons and neutrons, but a different number of electrons

Name for the columns in the periodic table, that show how many electrons are found in the outer shell of an atom.

Name for the rows in the periodic table that show you hopw many electron shells are found in the atom

How many protons does Nitrogen have?

• 7

• 8

• 14

• 14.01

If an element has an atomic number of 11 and a mass number of 23, how many neutrons does it have?

• 11

• 12

• 23

• 34

The structure of an atom of element X is shown what is element X? (K-CHEMISTRY)

• Boron

• Carbon

• Sodium

• Sulfur

The nucleus of a particular atom consists of nineteen particles. Nine of them are positively charged and ten of them are uncharged. Which statement about this nucleus is correct? (k-chemistry)

• The nucleus has a nucleon number of nine.

• The nucleus has a nucleon number of ten.

• The nucleus has a proton number of nine.

• The nucleus has a proton number of ten.

Which statement about an atom of fluorine ¹⁹ F ₉ ,

is correct?(K-CHEMISTRY)

• contains more protons than neutrons.

• It contains a total of 28 protons, neutrons and electrons.

• Its isotopes contain different numbers of protons.

• Its nucleus contains 9 neutrons.