When elements react to make compounds each element will end up with what?

A. A full outer shell of electrons

D. A different numbers of protons

What is a metallic bond?

B. A force of attraction between metal ions

A. A force of attraction between metal atoms

C. A force of attraction between metal ions and delocalised electrons

D. A force of attraction between delocalised electrons

Why do metals conduct electricity?

D. The delocalised electrons can move freely

A. The metal atoms can vibrate in the solid

B. The metal ions can move throughout the solid

C. The metallic bond holds the metal ions together

Why do most metals have high melting points?

D. The metallic bonds in metals are very strong

A. The covalent bonds in metals is very strong

B. The ionic bonds in metals is very strong

C. The metallic bonds in metals are very weak

Why is diamond so hard?

C. The covalently bonded carbon atoms are arranged as a giant lattice

A. The ionic bonds between the carbon atoms are very strong

B. The covalently bonded carbon atoms are arranged as a simple molecule

D. Carbon is bonded to 3 other carbon atoms

Why is graphite so soft?

B. The atoms are arranged in hexagons in layers that are held together weakly

A. The atoms are arranged in hexagons in layers that are held together strongly

C. Carbon is strongly bonded to 3 other carbon atoms.

D. Carbon is weakly bonded to 3 other carbon atoms.

Why is graphite so soft?

B. The atoms are arranged in hexagons in layers that are held together weakly

A. The atoms are arranged in hexagons in layers that are held together strongly

C. Carbon is strongly bonded to 3 other carbon atoms.

D. Carbon is weakly bonded to 3 other carbon atoms.

Why do simple molecules have low melting points?

D. The intermolecular forces are very weak.

A. The intermolecular forces are very strong

B. The intramolecular forces are very weak.

C. The intramolecular forces are very strong.

Why don’t simple molecules don’t conduct electricity in any state?

C. They don’t contain ions or free moving electrons.

A. Their ions are not free to move.

B. The covalent bonds are too strong.

Sulphur has a melting temperature of 114oC and a boiling temperature of 444oC. Which of these statements is most likely to be true about sulphur?

A. Sulphur is a simple molecule.

B. Sulphur is a giant covalent molecule.

C. Sulphur is a giant ionic lattice.

D. Sulphur is a giant metallic lattice.

Why don’t simple molecules don’t conduct electricity in any state?

B. The covalent bonds are too strong.

A. Their ions are not free to move.

C. They don’t contain ions or free moving electrons.

Why do simple molecules have low melting points?

B. The intramolecular forces are very weak.

A. The intermolecular forces are very strong

C. The intramolecular forces are very strong.

D. The intermolecular forces are very weak.

What makes an atom energetically stable?

C. A full outer shell of electrons.

A. Eight electrons in their inner shell.

B. More neutrons than electrons.

What does the plum pudding model of the atom suggest?

D. An atom is a ball of dilute positive charge with electrons in it.

A. An atom has a positive nucleus orbited by negative electrons.

B. An atom has a distinct nucleus.

C. An atom is a ball of dilute positive charge with neutrons in it

The nuclear model of the atom tells us that:

A. The mass of the atom is concentrated at the centre

B. An atom has protons, neutrons and electrons in the nucleus.

C. An atom has electrons in the nucleus

D. An atom has a nucleus made up of neutrons only

Which of these statements best describes how scientific ideas became accepted?

C. New evidence is discovered, peer reviewed and published

A. New evidence is discovered which is published if it is likely to make a lot of money.

B. New evidence is discovered and published.

D. Scientists ignore new evidence if it does not agree with important theories.

What is the definition of an isotope?

C. Two atoms of the same elements that have different number of neutrons.

A. Atoms of the same element that have different number of protons.

B. Atoms of the same elements that have different number of electrons.

Describe one disadvantage of Newlands table of Octaves

D. The elements are not divided into metals and non-metals

A. All of the elements have been discovered

B. All the elements have a symbol

C. There are more elements than Dalton’s table

Why did Mendeleev leave gaps in his periodic table

A. In case new elements were discovered.

B. The names of the elements could not fit into one box.

C. He did not like the design of his table

D. He thought there were going to be gaps.

What did the symbols that John Dalton use in his periodic look like

C. A symbol to represent each element.

A. The first letter of the element

The reactivity of the Group 1 elements increases as we go down the group because:

B. Electrons are held less strongly to the nucleus.

A. Electrons are held more strongly to the nucleus

C. The outer electrons are closer to the nucleus and so are lost more easily.

D. The outer electrons are further from the nucleus and so are held to the nucleus more tightly.

The reactivity of the Group 7 elements decreases as we go down the group because:

D. The atoms get larger so electrons are held less strongly to the nucleus.

A. The atoms get smaller so electrons are held more strongly to the nucleus.

B. The atoms get smaller so electrons are held less strongly to the nucleus.

C. The atoms get larger so electrons are held more strongly to the nucleus.

What is the first step in developing the modern day model of an atom?

John Dalton published his ideas about atoms. He thought that all matter was made of tiny particles called atoms, which he imagined as tiny spheres that could not be divided.

J J Thomson carried out experiments and discovered the electron. He made the plum pudding model of the atom. In this model, the atom is a ball of positive charge with negative electrons embedded in it.

Ernest Rutherford did the alpha scattering experiment through which he discovered that the mass of an atom is concentrated at its centre and the nucleus is positively charged. He called it the nuclear model.

Niels Bohr did calculations that led him to suggest that electrons orbit the nucleus in shells. The shells are at certain distances from the nucleus.

James Chadwick found evidence for the existence of particles in the nucleus with mass but no charge. These particles are called neutrons.

What is the second step in developing the modern day model of an atom?

J J Thomson carried out experiments and discovered the electron. He made the plum pudding model of the atom. In this model, the atom is a ball of positive charge with negative electrons embedded in it.

John Dalton published his ideas about atoms. He thought that all matter was made of tiny particles called atoms, which he imagined as tiny spheres that could not be divided.

Ernest Rutherford did the alpha scattering experiment through which he discovered that the mass of an atom is concentrated at its centre and the nucleus is positively charged. He called it the nuclear model.

Niels Bohr did calculations that led him to suggest that electrons orbit the nucleus in shells. The shells are at certain distances from the nucleus.

James Chadwick found evidence for the existence of particles in the nucleus with mass but no charge. These particles are called neutrons.

What is the third step in developing the modern day model of an atom?

Ernest Rutherford did the alpha scattering experiment through which he discovered that the mass of an atom is concentrated at its centre and the nucleus is positively charged. He called it the nuclear model.

John Dalton published his ideas about atoms. He thought that all matter was made of tiny particles called atoms, which he imagined as tiny spheres that could not be divided.

J J Thomson carried out experiments and discovered the electron. He made the plum pudding model of the atom. In this model, the atom is a ball of positive charge with negative electrons embedded in it.

Niels Bohr did calculations that led him to suggest that electrons orbit the nucleus in shells. The shells are at certain distances from the nucleus.

James Chadwick found evidence for the existence of particles in the nucleus with mass but no charge. These particles are called neutrons.

What is the fourth step in developing the modern day model of an atom?

Niels Bohr did calculations that led him to suggest that electrons orbit the nucleus in shells. The shells are at certain distances from the nucleus.

John Dalton published his ideas about atoms. He thought that all matter was made of tiny particles called atoms, which he imagined as tiny spheres that could not be divided.

J J Thomson carried out experiments and discovered the electron. He made the plum pudding model of the atom. In this model, the atom is a ball of positive charge with negative electrons embedded in it.

Ernest Rutherford did the alpha scattering experiment through which he discovered that the mass of an atom is concentrated at its centre and the nucleus is positively charged. He called it the nuclear model.

James Chadwick found evidence for the existence of particles in the nucleus with mass but no charge. These particles are called neutrons.

What is the fifth step in developing the modern day model of an atom?

James Chadwick found evidence for the existence of particles in the nucleus with mass but no charge. These particles are called neutrons.

John Dalton published his ideas about atoms. He thought that all matter was made of tiny particles called atoms, which he imagined as tiny spheres that could not be divided.

J J Thomson carried out experiments and discovered the electron. He made the plum pudding model of the atom. In this model, the atom is a ball of positive charge with negative electrons embedded in it.

Ernest Rutherford did the alpha scattering experiment through which he discovered that the mass of an atom is concentrated at its centre and the nucleus is positively charged. He called it the nuclear model.

Niels Bohr did calculations that led him to suggest that electrons orbit the nucleus in shells. The shells are at certain distances from the nucleus.

What is the equation for Atom economy?

RFM of desired products / RFM of all reactants * 100

Mass of product made / maximum theoretical mass of product * 100

AQA Chemistry Paper 1

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61 Qs

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AQA Chemistry Paper 1

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Chemistry

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9th Grade

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Practice Problem

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Hard

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NGSS

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